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The Library

Forty Centuries of Christian Writing

1577 works catalogued century by century, from the literature the Bible was written among to the present — each with a note on what it is, why it lasted, and where to read it.

1301–1400

The Fourteenth Century

6 works

1324

Latin

The Defender of the Peace

Defensor Pacis

Marsilius of Padua · c. 1275–c. 1342

Authority belongs to the whole body of citizens; the clergy have no coercive power at all; and a general council, not the pope, is the church's highest authority.

Western · Political theory

c. 1334–1347

Latin

The Dialogue

William of Ockham · c. 1287–1347

An immense unfinished dialogue on heresy, papal error, and where authority in the church finally rests — canvassing every position without always declaring for one.

Franciscan · Dialogue

1378–1379

Latin

The Declarations of the Great Schism

The cardinals of Rome and Avignon

The competing manifestos of 1378: one body of cardinals declaring Urban VI validly elected, the same body months later declaring the election void under duress and choosing another.

Western · Declarations

1380

Latin

Letter of Concord

Epistola Concordiae

Conrad of Gelnhausen · c. 1320–1390

An argument that a general council may be summoned without a pope's consent when the church's welfare requires it, since the church is greater than any officer of it.

Western · Political theory

c. 1379–1381

Latin

On the Schism

Pierre d'Ailly · 1351–1420

Early writings on the schism arguing that the church cannot be bound to an uncertain obedience, and that a council represents it more fully than a doubtful pope.

Western · Political theory

1379–1381

Latin

Letter of Peace

Henry of Langenstein · c. 1325–1397

A call for a general council to judge both claimants, arguing that neither obedience can be certain and that the faithful must not be left in doubt about their own sacraments.

Western · Political theory

1401–1500

The Fifteenth Century

8 works

1409

Latin

On the Unity of the Church

Jean Gerson · 1363–1429

An argument that the church may act to heal itself when the papacy will not, since the church exists for the salvation of souls and not for the convenience of its officers.

Western · Political theory

1410

Latin

On the Ways of Uniting and Reforming the Church

Dietrich of Niem · c. 1345–1418

A distinction between the universal church, which cannot err, and the Roman church, which plainly can — with the conclusion that a council may depose both claimants.

Western · Political theory

6 April 1415

Latin

Haec Sancta Synodus

The Council of Constance

A decree declaring that a general council holds authority immediately from Christ, and that everyone including the pope must obey it in matters of faith, schism, and reform.

Western · Decree

1416

Latin

On the Authority of the Church

Pierre d'Ailly · 1351–1420

A defence of the council's authority over a pope, distinguishing the church as a whole from the Roman church and locating infallibility in the former.

Western · Ecclesiology

9 October 1417

Latin

Frequens

The Council of Constance

A decree requiring general councils to meet at fixed intervals — five years, then seven, then every ten — so that the church could correct itself without waiting for a crisis.

Western · Decree

1433

Latin

On Catholic Concordance

De Concordantia Catholica

Nicholas of Cusa · 1401–1464

A programme for reform of church and empire built on consent: all legitimate authority rests on the agreement of those subject to it, in councils and in states alike.

Western · Political theory

1433–1437

Latin

The Reform Proposals of the Council of Basel

The Council of Basel

Decrees abolishing annates, regulating appeals to Rome, requiring provincial synods, and restricting the papacy's financial claims on local churches.

Western · Decrees

c. 1449–1453

Latin

Summa on the Church

Juan de Torquemada · 1388–1468

A systematic defence of papal authority against conciliarism, arguing that a council's authority derives from the pope and not the reverse.

Dominican · Ecclesiology