What Is Collegiality, and Why Was It Controversial?
Short Answer
Episcopal collegiality is the teaching, developed prominently at Vatican II, that the bishops of the Catholic Church do not merely govern their individual dioceses but together constitute an episcopal college, succeeding the apostolic college, which—always united with and never apart from the Roman Pontiff as its head—is itself a subject of “supreme and full power over the universal Church.”
The controversy centred especially on Chapter III of Vatican II's Lumen Gentium.
The difficulty was not the traditional truth that bishops are successors of the Apostles, that they possess real authority in their dioceses, that they may assemble in an ecumenical council under the Pope, or that they share responsibility for the welfare of the Church.
The disputed proposition was more precise.
Lumen Gentium 22 teaches first that the Pope possesses “full, supreme and universal power” over the whole Church and can always exercise it freely. But it then says that:
“the order of bishops…is also the subject of supreme and full power over the universal Church”
provided that this college is understood together with the Roman Pontiff and never without him.
That formulation alarmed a substantial minority of Council Fathers because they feared that it introduced, or at least permitted, the conception of two subjects possessing supreme power: the Pope personally, and the episcopal college together with the Pope.
The controversy became sufficiently serious that Paul VI ordered the addition of the Nota Explicativa Praevia—the Preliminary Explanatory Note—which insisted that the Pope's primacy remained intact and that the episcopal college could exercise its supreme power only with its head.
The Nota substantially restricts interpretations of collegiality that would subordinate the Pope to the bishops. But it does not erase the underlying fact that Lumen Gentium describes the episcopal college as “also” a subject of supreme and full power.
That is why collegiality became one of Vatican II's most disputed ecclesiological questions—and why its subsequent development into episcopal conferences, synodal structures and contemporary “synodality” deserves careful examination.
Why This Question Matters
At first sight, “collegiality” can sound like little more than bishops working together. There is nothing revolutionary about that. The Catholic Church has held ecumenical councils since antiquity. Bishops have assembled in provincial and regional councils. They have consulted one another, defended the Faith together and shared concern for the universal Church.
The controversy at Vatican II concerned something deeper:
Who possesses supreme jurisdiction over the universal Church, and by what divine constitution?
Christ did not leave the government of His Church undefined. He said specifically to Simon Peter:
“Thou art Peter; and upon this rock I will build my church… And I will give to thee the keys of the kingdom of heaven.” — Matthew 16:18–19
After the Resurrection, Christ entrusted His entire flock to Peter:
“Feed my lambs… Feed my sheep.” — John 21:15–17
The First Vatican Council solemnly defined the resulting primacy of jurisdiction.
Therefore, if Vatican II altered the relationship between the Roman Pontiff and the episcopate, this was not merely an administrative reform. It concerned the divinely constituted government of the Catholic Church.
That explains the intensity of the controversy.
What the Catholic Church Taught Before Vatican II
Peter Received the Primacy Personally
Vatican I's Pastor Aeternus is the indispensable doctrinal baseline. The Council taught that Christ bestowed the primacy of jurisdiction upon Peter directly and immediately.
It expressly rejected the theory that supreme authority had first been given to the Church collectively and only subsequently exercised by Peter as its representative. That distinction is crucial.
Peter was not merely:
chairman of the Apostles;
spokesman for the episcopal body;
executor of a collective episcopal will;
or first among equals possessing authority only as representative of the whole.
He possessed a true primacy of jurisdiction given to him by Christ.
The Pope Possesses Full and Supreme Jurisdiction
Vatican I further defined that the Roman Pontiff possesses full and supreme power of jurisdiction over the universal Church.
His jurisdiction is:
supreme;
full;
ordinary;
truly episcopal;
immediate over pastors as well as faithful;
and applicable not merely to faith and morals but also to the discipline and government of the Church.
All bishops and faithful, individually and collectively, remain subject to this supreme jurisdiction.
Yet Vatican I did not thereby abolish episcopal authority.
On the contrary, it explicitly affirmed the ordinary and immediate episcopal jurisdiction by which bishops govern the flocks assigned to them. Papal primacy strengthens and protects legitimate episcopal authority rather than destroying it.
The traditional structure can therefore be expressed as:
| Roman Pontiff | Individual Bishops |
|---|---|
| Supreme pastor of the universal Church | True pastors of their particular churches |
| Possesses supreme and universal jurisdiction | Possess ordinary episcopal jurisdiction over the flock committed to them |
| Authority extends immediately to every pastor and faithful | Authority is exercised within their assigned jurisdiction |
| Can act as supreme pastor independently of an ecumenical council | Remain hierarchically subordinate to the Roman Pontiff |
| Visible head and principle of unity of the universal Church | Successors of the Apostles governing under the supreme authority of Peter's successor |
This is the doctrinal background against which Vatican II's collegiality must be read.
What Lumen Gentium Taught
Chapter III of Lumen Gentium is entitled:
“On the Hierarchical Structure of the Church and in Particular on the Episcopate.”
Its treatment of episcopal authority culminates in §22. The text first gives an unequivocal affirmation of papal primacy:
“The pope's power of primacy over all, both pastors and faithful, remains whole and intact.”
It immediately adds that the Roman Pontiff possesses:
“full, supreme and universal power over the Church”
and “is always free to exercise this power.”
Taken alone, that language closely resembles Vatican I. But Lumen Gentium then introduces the proposition that caused the controversy. It states that the episcopal order succeeding the apostolic college:
“is also the subject of supreme and full power over the universal Church”
provided that the body is understood together with its head, the Roman Pontiff, and never without him.
This is the heart of the issue.
Two Expressions of Supreme Power
The resulting formulation can be represented simply:
| Lumen Gentium III | Power Attributed |
|---|---|
| Roman Pontiff | Full, supreme and universal power |
| Episcopal college together with the Roman Pontiff | Supreme and full power |
| Bishops without the Roman Pontiff | No collegiate supreme authority |
Thus Vatican II did not teach that the bishops could govern the universal Church independently of the Pope. Nor did it teach that an ecumenical council stood above the Pope. But it did expressly describe the episcopal college with the Pope as “also” a subject of supreme and full power.
That word “also” is important. The controversy therefore cannot accurately be reduced to:
“Traditionalists objected because Vatican II said bishops have authority.”
That would miss the point. The question was whether supreme ecclesiastical authority should be conceived as residing in the Pope personally and also in the episcopal college united with him—and what precisely this meant for the constitution of the Church.
Why Some Council Fathers Objected
A substantial conservative minority feared that the language of collegiality could weaken the clarity of Vatican I concerning papal primacy.
Their objection was not principally to bishops cooperating. They feared that describing the episcopal college as possessing supreme power by divine constitution might allow the Pope increasingly to be understood as head of a collective governing body rather than as the supreme pastor possessing the plenitude of jurisdiction personally by virtue of his office.
Contemporary accounts confirm that Chapter III became one of the principal battlegrounds of the Council. Conservative Council Fathers argued that the proposed doctrine might infringe the primacy defined by Vatican I, while supporters maintained that collegiality complemented rather than contradicted it.
Among the minority's concerns were questions such as:
Does episcopal consecration itself confer universal governing authority?
Does the episcopal college permanently possess supreme jurisdiction?
Are there therefore two subjects of supreme power?
Is the Pope's supreme jurisdiction somehow derived from or conditioned by his membership in the episcopal college?
Could collegiality eventually transform papal government into collective episcopal government?
Could episcopal conferences acquire authority at the expense of individual bishops?
Would the Pope increasingly become the executive head of an episcopal body rather than the supreme pastor of the Church?
These were not merely semantic anxieties. They concerned the theological structure of ecclesiastical authority.
The Nota Explicativa Praevia
The controversy became serious enough that Paul VI intervened.
A Preliminary Explanatory Note — Nota Explicativa Praevia was attached to Chapter III and was to govern how its teaching on collegiality was understood.
The historical significance of this should not be understated. The Nota was intended precisely to answer fears that Chapter III might undermine papal primacy. Historical scholarship records that Paul VI's intervention was intended to reassure the minority and obtain much broader agreement on the Constitution.
What the Nota Said
The Nota makes several important clarifications.
First, the episcopal college cannot be conceived apart from its head.
Second, the Pope remains fully capable of exercising his supreme authority personally.
Third, the bishops cannot turn themselves into a collegiate supreme authority independently of him.
Fourth, the exercise of specifically collegiate power requires the Pope's participation or consent.
Most importantly, the Nota explains that the distinction is:
“not a distinction between the Roman Pontiff and the bishops taken collectively”
but between:
“the Roman Pontiff taken separately and the Roman Pontiff together with the bishops.”
This is crucial. It excludes the model:
Pope ↔ College of Bishops
as though two independent supreme authorities confronted one another. Instead, the formulation becomes:
Pope alone
and
Pope + episcopal college
The Pope is present in both.
The Pope Remains Free
The Nota further insists that the Roman Pontiff may exercise his supreme authority according to his own judgment.
The college cannot compel him to act collegially.
It cannot independently convene itself as the supreme government of the Church.
It cannot exercise supreme collegiate power without him.
Thus the Nota unquestionably rules out some of the most radical interpretations that opponents of collegiality feared.
Did the Nota Praevia Solve the Problem?
It solved part of the problem. It makes it impossible to interpret Lumen Gentium legitimately as teaching that:
the episcopal college exists as a supreme authority apart from the Pope;
the bishops can overrule the Pope;
an ecumenical council is superior to the Pope;
the Pope requires episcopal permission to exercise his primacy;
or the Pope is merely the executive officer of the episcopal college.
Those propositions cannot fairly be attributed to the final text of Lumen Gentium read with its Nota.
But another question remains.
Why Call the College “Also” a Subject of Supreme Power?
Even after the Nota, Lumen Gentium still states that the episcopal college is “also” the subject of supreme and full power over the universal Church.
The Nota itself acknowledges this formulation and explains that it must be understood so that the Pope's plenitude of power is not brought into question. Consequently, the theological question becomes more exact:
Are there really two subjects of supreme ecclesiastical power, albeit inadequately distinct because the Pope necessarily belongs to both?
Catholic theologians have disagreed over how precisely this should be explained. Some defenders of Vatican II argue that there is no contradiction with Vatican I: the Pope alone and the Pope united with the bishops represent two modes or closely related subjects through which the one supreme ecclesiastical authority may be exercised. They point to preconciliar theological discussions and Vatican I's unfinished treatment of the episcopate as evidence that the idea did not simply originate at Vatican II.
Traditionalist critics respond that the conciliar formulation nevertheless changes the conceptual centre of gravity. The danger, they argue, lies in making the episcopal college a permanent possessor of universal supreme authority by divine constitution, rather than understanding an ecumenical council's supreme authority through its union with and dependence upon the Roman Pontiff.
The existence of these competing interpretations itself shows why the wording was controversial.
Vatican I and Vatican II Side by Side
| Question | Vatican I / Traditional Baseline | Lumen Gentium III |
|---|---|---|
| Who received Petrine primacy? | Peter personally, directly from Christ | Affirmed |
| Does the Pope possess full supreme jurisdiction? | Yes | Yes |
| Is papal jurisdiction immediate over pastors and faithful? | Yes | Not denied |
| May the Pope exercise supreme authority personally? | Yes | Yes |
| Are bishops true successors of the Apostles? | Yes | Strongly emphasised |
| May bishops govern the universal Church apart from the Pope? | No | No |
| Is a council superior to the Pope? | No | No |
| Is the episcopal college with the Pope described as a subject of supreme power? | Not defined in Pastor Aeternus in these terms | Yes |
| Is collegiality presented as belonging to the constitution of the episcopate? | Not developed by Vatican I's promulgated constitution | Yes |
| Does this create two independent supreme authorities? | No | Nota Praevia expressly excludes such an interpretation |
This comparison reveals both the continuity and the difficulty. It would be inaccurate to say:
“Vatican II abolished papal primacy.”
It did not. But it would also be inadequate to say:
“Nothing changed; Vatican II simply repeated Vatican I.”
It did not merely repeat Vatican I. It gave the episcopal college a much more explicit theological status as a subject of universal supreme power and made collegiality an important organising principle of its ecclesiology.
Collegiality Was Not Merely a Theory
The importance of collegiality becomes clearer when we follow it beyond Lumen Gentium. Vatican II's ecclesiology contributed to the expanded role of:
episcopal conferences;
the Synod of Bishops;
national and regional episcopal structures;
collective pastoral decision-making;
consultation between Rome and episcopal bodies;
and eventually the contemporary emphasis upon synodality.
This does not mean that every subsequent development was explicitly commanded by Lumen Gentium.
But neither can the historical connection simply be denied. The postconciliar Holy See itself has repeatedly presented these structures as expressions or developments of Vatican II's collegial ecclesiology. For example, John Paul II's Apostolos Suos explicitly describes bishops acting collegially as exercising a power proper to them for the good of the universal Church.
More strikingly, a 2024 Vatican presentation on primacy and synodality explicitly described collegiality as one of Vatican II's most debated questions and acknowledged the difficulty created by the apparent existence of two subjects of “supreme and full power over the whole Church.” It then proposed reading primacy and collegiality through the contemporary framework of synodality.
Thus the progression is historically visible:
Episcopal college
↓
Collegial responsibility for the universal Church
↓
Expanded episcopal structures
↓
Synod of Bishops and episcopal conferences
↓
Synodality as a broader principle of ecclesial government
This does not prove that every contemporary synodal development was secretly intended by every Council Father in 1964. It does demonstrate that collegiality did not remain an abstract theological discussion.
Main Objection
The strongest objection is straightforward:
There is no contradiction whatsoever between Vatican I and Vatican II.
Vatican I deliberately concentrated upon the papacy because the Council was interrupted before it could complete its intended treatment of the episcopate.
Vatican II therefore completed rather than reversed Vatican I.
Furthermore, Lumen Gentium explicitly affirms every essential element of papal primacy:
the Pope possesses full, supreme and universal authority;
his primacy over pastors and faithful remains intact;
he may always exercise his authority freely;
the episcopal college cannot exist without him;
the college cannot exercise supreme power without his consent;
and no council possesses authority over him.
The Nota Praevia removes any reasonable possibility of interpreting collegiality as conciliarism. Therefore collegiality should be understood not as a revolution against papal primacy but as a recovery of the traditional role of the episcopate alongside the teaching of Vatican I.
Response
There is considerable force in part of this objection. Any serious critique must acknowledge that Lumen Gentium does affirm papal primacy explicitly.
It would therefore be false to accuse Vatican II of straightforwardly teaching conciliarism or formally subordinating the Pope to the episcopal college.
The Nota Praevia makes that even clearer. But this does not make the controversy imaginary.
The crucial novelty of emphasis remains the assertion that the episcopal college is “also the subject of supreme and full power over the universal Church.”
Indeed, the very necessity of the Nota Praevia demonstrates how serious the interpretive problem had become. If Chapter III were merely an unproblematic restatement of universally understood Catholic doctrine, it is difficult to explain why a papally imposed explanatory note was considered necessary to prevent interpretations prejudicial to papal primacy. Nor did the ecclesiological development stop in 1964.
Postconciliar Catholicism increasingly emphasised:
primacy + collegiality + synodality
rather than speaking primarily in the juridically vertical terms characteristic of Vatican I.
That development does not by itself prove a formal contradiction of defined dogma. But it does demonstrate a significant reconfiguration of ecclesiological emphasis and governing structures.
The legitimate traditional question is therefore not:
“Should bishops have any authority?”
Of course they should. Nor is it:
“May bishops work together?”
Of course they may. The question is:
Did Vatican II's conception of the episcopal college alter the traditional understanding of the subject and exercise of supreme jurisdiction in the Church, and did its deliberately expansive language provide the theological foundation for the increasingly synodal conception of ecclesiastical authority that followed?
That question cannot be answered merely by pointing to the sentences in Lumen Gentium affirming papal primacy. The whole ecclesiology must be examined.
What We Can and Cannot Conclude
What We Can Conclude
We can establish that:
Vatican I unmistakably taught the full, supreme, ordinary and immediate jurisdiction of the Roman Pontiff.
Vatican II did not formally abolish or explicitly deny that doctrine.
Lumen Gentium 22 expressly reaffirmed that the Pope possesses full, supreme and universal power and can always exercise it freely.
Lumen Gentium also expressly declared the episcopal college united with the Pope to be “also the subject of supreme and full power over the universal Church.”
This formulation caused serious opposition among conservative Council Fathers because they feared its implications for papal primacy.
Paul VI considered those concerns sufficiently serious to require the Nota Explicativa Praevia.
The Nota excludes interpretations in which the episcopal college acts independently of, controls, or stands above the Roman Pontiff.
Nevertheless, the conciliar formulation concerning the episcopal college as a subject of supreme power remained.
Collegiality subsequently became an important theological foundation for postconciliar episcopal and synodal structures.
The relationship between primacy, collegiality and synodality therefore remains an important question when assessing the ecclesiological transformation produced by and following Vatican II.
What We Cannot Conclude
The evidence does not justify saying simply that:
Vatican II abolished the papacy;
Vatican II formally taught conciliarism;
bishops may govern the universal Church without the Pope;
an episcopal conference possesses supreme jurisdiction;
the Pope became merely a chairman of the bishops;
or every later form of synodality was consciously planned by every Council Father.
Those claims go beyond the actual text. Precision is important precisely because the real question is serious enough without exaggeration.
Conclusion
Collegiality became controversial at Vatican II because the Council was dealing with something far more important than whether bishops should cooperate. It was addressing the divine constitution of authority within the Church.
The traditional Catholic doctrine defined at Vatican I is unequivocal: Christ conferred upon Peter and his successors a true primacy of jurisdiction over the universal Church. The Roman Pontiff possesses full, supreme, ordinary and immediate jurisdiction over pastors and faithful.
Lumen Gentium did not expressly deny this. Indeed, Chapter III repeatedly affirmed it.
But Vatican II simultaneously declared that the episcopal college, necessarily united with the Pope as its head, is “also the subject of supreme and full power over the universal Church.”
That formulation was sufficiently controversial that Paul VI required the Nota Praevia to prevent collegiality from being interpreted in a manner prejudicial to papal primacy. The Nota therefore matters enormously. It prevents a crude reading according to which Vatican II simply transferred supreme authority from the Pope to the bishops. But it does not make the controversy disappear.
Vatican II placed episcopal collegiality near the centre of its ecclesiology, and the postconciliar period increasingly developed ecclesiastical government through episcopal conferences, synods and, eventually, the much broader language of synodality.
The proper conclusion is therefore more exact than either extreme. It is inaccurate to claim that Vatican II simply abolished papal primacy. But it is equally inadequate to suggest that nothing of consequence changed.
Chapter III of Lumen Gentium introduced an expanded conception of the episcopal college's relationship to supreme universal authority. The controversy concerned whether that conception could be fully reconciled with the traditional doctrine of papal primacy and how far its internal logic would transform Catholic ecclesiology in practice.
The developments after the Council make that question more—not less—important. And because the constitution of the Church was established by Christ rather than invented by ecclesiastical administrators, the ultimate standard cannot be whether collegial or synodal government appears pastorally attractive. The standard must remain:
What authority did Christ actually establish in His Church?
Primary Sources
Holy Scripture — Matthew 16:16–19; Luke 22:31–32; John 21:15–17 — The principal biblical texts concerning Peter's unique commission, the keys, strengthening the brethren and shepherding Christ's flock.
First Vatican Council, Pastor Aeternus (18 July 1870) — The fundamental dogmatic definition of Petrine primacy and the Roman Pontiff's full, supreme, ordinary and immediate jurisdiction over the universal Church.
Read Pastor Aeternus
Second Vatican Council, Lumen Gentium (21 November 1964), Chapter III, especially §§18–23 — The essential primary text for Vatican II's doctrine of the episcopate and collegiality.
Read Lumen Gentium
Nota Explicativa Praevia to Lumen Gentium — The indispensable interpretative note clarifying that the episcopal college cannot exist or act as a supreme collegiate authority without the Roman Pontiff and that papal primacy remains unhindered. It is reproduced with the official text of Lumen Gentium.
John Paul II, Apostolos Suos (1998) — Important for tracing the postconciliar understanding of episcopal collegiality and episcopal conferences.
Read Apostolos Suos
Further Reading
Cardinal Louis Billot, S.J., De Ecclesia Christi — Important pre-Vatican II theological treatment of the constitution of the Church, episcopacy and supreme ecclesiastical authority.
Cardinal Charles Journet, The Church of the Word Incarnate / The Theology of the Church — Particularly useful for understanding theological discussions concerning the Pope and episcopal college as subjects of supreme authority.
Fr Ralph M. Wiltgen, S.V.D., The Rhine Flows into the Tiber — Contemporary historical account of the factions, interventions and theological controversies surrounding Vatican II, including collegiality.
John W. O'Malley, S.J., What Happened at Vatican II — A modern historical account useful for reconstructing the conciliar debates; its theological perspective should be distinguished from the doctrinal evaluation of the Council.
Romano Amerio, Iota Unum — A critical examination of the doctrinal and institutional changes associated with Vatican II and the postconciliar period.
Archbishop Marcel Lefebvre, They Have Uncrowned Him and writings on Vatican II — Presents the traditionalist critique of conciliar ecclesiology and its relationship to the wider transformation of Catholic doctrine and government.
Related Questions
What Did Vatican II Change About the Nature of the Church?
What Does “Subsists In” Mean in Lumen Gentium?
What Is Synodality, and How Does It Differ From Traditional Catholic Church Government?
Who Recognised the Dangers of Vatican II and Tried to Resist or Correct Them?
Can Catholic Doctrine Change or Develop?
What Did Vatican I Define About Papal Primacy and Infallibility?
Can a Pope Teach Error or Heresy?
How Does the Indefectibility of the Church Apply to the Vatican II Crisis?