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João (Aviz) Portugal (1400 - 1442)

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João (John) "Infante, Constable of Portugal" Portugal formerly Aviz
Born in Santarem, Santarem, Portugalmap
Ancestors ancestors
Husband of — married [location unknown]
Descendants descendants
Died in Alcacer Do Sal, Setubal, Portugalmap
Profile last modified | Created 12 Oct 2011
This page has been accessed 949 times.

Categories: House of Aviz.



John, Constable of Portugal[1]
b. 13 Jan 1400 Santarém
d. 18 Oct 1442 Alcácer do Sal


  • Constable of Portugal
  • Master of the Portuguese Order of St. James (Santiago).

Early Life

p. Philippa of Lancaster and John I of Portugal


m.1424 Isabella of Barcelos.[2] Issue: 4
  • Infante Diogo of Portugal (1425–1443) – 4th Constable of Portugal and 11th Master of the Order of St. James
  • Infanta Isabella of Portugal (1428–1496) m. John II of Castile
  • Infanta Beatrice of Portugal (1430–1506) m. Infante Ferdinand, Duke of Viseu
  • Infanta Phillipa of Portugal (1432–1444), Lady of Almada



  1. Portuguese: João; O Infante Condestável ("the Constable Prince").
  2. Father: half-brother Afonso of Barcelos.

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No known carriers of John's Y-chromosome or his mother's mitochondrial DNA have taken yDNA or mtDNA tests.

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On 27 Nov 2016 at 08:03 GMT C (Sälgö) S wrote:


John is 26 degrees from Rosa Parks, 24 degrees from Anne Tichborne and 14 degrees from Victoria of the United Kingdom of Great Britain and Ireland on our single family tree. Login to find your connection.

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