João I
King of Portugal
(1358–1433)

Biographical

King of Portugal 1367–83†
18th Grand Master of the Order of Aviz c. 1364–87

Founder of the House of Aviz.

Place of birth: Lisbon
Place of marriage: Oporto
Place of death: Lisbon
Place of burial: Batalha

Illegitimate son of Pedro I of Portugal and Teresa Lourenço, he was married in 1387 to Philippa of Lancaster, with issue