1400 - 1442 (42 years)| Name | Joao de Portugal de Santiago | |
| Birth | 13 Jan 1400 | Santarém, Santarem, Portugal  |
| Gender | Male | |
| Death | 18 Oct 1442 | Alcácer do Sal, Setubal, Portugal |
| Person ID | I2502 | A Tree Called Smith |
| Last Modified | 21 Jul 2025 | |
| Family | Isabella de Barcelos, b. Oct 1402, Barcelos, Braga, Portugal d. 26 Oct 1465, Spain (Age 63 years) | |||
| Marriage | 11 Nov 1424 | |||
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| Family ID | F693 | Group Sheet | Family Chart | ||
| Last Modified | 21 Jul 2025 | |||
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| Old World | | _John, Constable of Portugal Infante John, Constable of Portugal (13 Jan 1400 – 18 Oct 1442) was a Portuguese infante (prince) of the House of Aviz, Constable of Portugal and master of the Portuguese Order of St. James (Santiago). Infante John was the son of King John I of Portugal and his wife Philippa of Lancaster. |
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