John I of Portugal, King of Portugal

1357 - 1433  (76 years)

• Name	John I of Portugal  [1, 2, 3]
  Suffix	King of Portugal
  Birth	11 Apr 1357	Lisbon, Lisboa, Portugal   [2, 3]
  Gender	Male
  Also Known As	"El Bastardo"  [2]
  Also Known As	"João de Boa Memória"  [2]
  Also Known As	"João o Bom"  [2]
  Also Known As	"João o Grande"  [2]
  Also Known As	"John of Fond Memory"  [2]
  Also Known As	"John the Good"  [2]
  Also Known As	"John the Great"  [2]
  Also Known As	"The Bastard"  [2]
  Also Known As	João I of Portugal  [2]
  Also Known As	John of Aviz  [2]
  Military	14 Aug 1385	Aljubarrota, Leiria, Portugal   [2]
  	Battle of Aljubarrota
  Title	Grand Master of the Order of Aviz  [2, 3, 4]
  Title	6 Apr 1385–14 Aug 1433  [2, 3]
  	10th King of Portugal
  Death	14 Aug 1433	Lisbon, Lisboa, Portugal   [2, 3]
  Burial	Batalha Monastery, Batalha, Leiria, Portugal   [2]
  Person ID	I22	Trastámara Genealogy
  Last Modified	11 May 2025

  
  

  Father	Peter I of Portugal, King of Portugal ,   b. 8 Apr 1320, Coimbra, Coimbra, Portugal d. 18 Jan 1367, Estremoz, Evora, Portugal (Age 46 years)
  Mother	Teresa Lourenço,   b. Abt. 1330, Lisbon, Lisboa, Portugal
  Family ID	F368	Group Sheet  |  Family Chart

  
  

  Family 1	Philippa of Lancaster,   b. 31 Mar 1360   d. 19 Jul 1415 (Age 55 years)
  Marriage	2 Feb 1387	Porto, Porto, Portugal   [2]
  Children	1. Blanche of Portugal, Infanta of Portugal,   b. 13 Jul 1388   d. 6 Mar 1389 (Age 0 years)   2. Afonso of Portugal, Infante of Portugal,   b. 30 Jul 1390   d. 22 Dec 1400 (Age 10 years) + 3. Edward of Portugal, King of Portugal,   b. 31 Oct 1391, Viseu, Viseu, Portugal d. 9 Sep 1438, Tomar, Santarem, Portugal (Age 46 years)   4. Peter of Portugal, Duke of Coimbra,   b. 9 Dec 1392   d. 20 May 1449 (Age 56 years)   5. Henry of Portugal, Duke of Viseu,   b. 4 Mar 1394   d. 13 Nov 1460 (Age 66 years) + 6. Isabella of Portugal, Duchess of Burgundy,   b. 21 Feb 1397, Évora, Evora, Portugal d. 11 Dec 1471, Aire-sur-la-Lys, Pas-de-Calais, Hauts-de-France, France (Age 74 years) + 7. John of Portugal, Constable of Portugal,   b. 13 Jan 1400, Alcácer do Sal, Setubal, Portugal d. 18 Oct 1442, Alcácer do Sal, Setubal, Portugal (Age 42 years)   8. Ferdinand of Portugal, Infante of Portugal,   b. 29 Sep 1402   d. 5 Jun 1443 (Age 40 years)
  Family ID	F8	Group Sheet  |  Family Chart
  Last Modified	11 May 2025

  
  

  Family 2	Inês Peres
  Children	+ 1. Afonso I of Braganza, 1st Duke of Braganza,   b. 10 Aug 1377, Veiros, Estremoz, Alentejo, Portugal d. 15 Dec 1461 (Age 84 years)   2. Beatrice of Portugal, Countess of Arundel,   b. Abt. 1380   d. Nov 1439 (Age ~ 59 years)
  Family ID	F369	Group Sheet  |  Family Chart
  Last Modified	11 May 2025

  
  

• Photos

  John I, King of Portugal

  
  

• Sources

  [S18] "Blanche of Lancaster," Wikipedia, last modified 18 Jan 2025, https://en.wikipedia.org/wiki/Blanche_of_Lancaster. [S82] "John I of Portugal," Wikipedia, last modified 19 Apr 2025, https://en.wikipedia.org/wiki/John_I_of_Portugal. [S86] "Peter I of Portugal," Wikipedia, last modified 16 Jan 2025, https://en.wikipedia.org/wiki/Peter_I_of_Portugal. [S85] "Teresa Lourenço," Wikipedia, last modified 31 Aug 2024, https://en.wikipedia.org/wiki/Teresa_Lourenço.