John IV, Duke of Brittany

John IV
Drawing c.1700 of English-made effigy, on white arcaded chest tomb, Nantes Cathedral. Original monument destroyed. Drawing by Roger de Gaignières.[1]
Duke of Brittany
Reign12 April 1365 – 1 November 1399
PredecessorJoan, Duchess of Brittany, contested by John (IV)
SuccessorJohn V
Count of Montfort
(as John III)
Reign16 September 1345 – 1 November 1399
PredecessorJohn II
SuccessorJohn IV
Earl of Richmond
Reign20 June 1372 – 1 November 1399
PredecessorJohn of Gaunt
BornSeptember–December 1339[2]
Died1 November 1399 (aged 59–60)
Nantes, Brittany
Burial
Spouses
(m. 1361; died 1361)
(m. 1366; died 1384)
(m. 1386)
Issue
full list...
FamilyMontfort
FatherJohn of Montfort
MotherJoanna of Flanders
Arms of John IV, Duke of Brittany, KG
John IV, Duke of Brittany, KG (right) jousting in Vannes, Brittany, with Thomas of Woodstock, 1st Duke of Gloucester, KG, c. 1480, Froissart's Chronicles

John IV the Conqueror KG (in Breton Yann IV, in French Jean IV, and traditionally in English sources both John of Montfort and John V) (1339 – 1 November 1399), was Duke of Brittany and Count of Montfort from 1345 until his death and 7th Earl of Richmond from 1372 until his death.

  1. ^ Bodleian Library Oxford, catalogue entry, based on J. Bertram, Gough's Sepulchral Monuments (unpublished, 2004)[1]
  2. ^ Cokayne, G. (1945). H. Doubleday; Lord Howard de Walden (eds.). The Complete Peerage. Vol. 10 (2nd ed.). London: St. Catherine Press. p. 822
  3. ^ Cokayne 1945, p. 824.