John I of Portugal

John I
Portrait, c. 1435
King of Portugal
Reign6 April 1385 – 14 August 1433
Acclamation6 April 1385
PredecessorBeatrice (disputed) or Ferdinand I
SuccessorEdward
Born11 April 1357
Lisbon, Portugal
Died14 August 1433 (aged 76)
Lisbon, Portugal
Burial
Batalha Monastery
Spouse
Philippa of Lancaster
(m. 1387; died 1415)
Issue
among others...
  • Edward, King of Portugal
  • Peter, Duke of Coimbra
  • Henry, Duke of Viseu
  • Isabella, Duchess of Burgundy
  • John, Constable of Portugal
  • Ferdinand, Master of Aviz
  • Illegitimate:
    Afonso I, Duke of Braganza
  • Beatrice, Countess of Arundel
HouseAviz
FatherPeter I of Portugal
MotherTeresa Lourenço
Signature

John I (Portuguese: João[1] [ʒuˈɐ̃w̃]; 11 April 1357 – 14 August 1433), also called John of Aviz, was King of Portugal from 1385 until his death in 1433. He is recognized chiefly for his role in Portugal's victory in a succession war with Castile, preserving his country's independence and establishing the Aviz (or Joanine) dynasty on the Portuguese throne. His long reign of 48 years, the most extensive of all Portuguese monarchs, saw the beginning of Portugal's overseas expansion.[2] John's well-remembered reign in his country earned him the epithet of Fond Memory (de Boa Memória).[3]

  1. ^ Rendered as Joam or Joham in Archaic Portuguese
  2. ^ Livermore, H. [in German] (20 July 1998). "John I, king of Portugal". Encyclopædia Britannica.
  3. ^ Cronica Del Rei Dom Joao I De Boa Memoria E Dos Reis De Portugal O Decimo