Biography of Edward "The Philosopher" I King Portugal 1391-1438

On 2nd February 1387 [his father] King John I of Portugal (age 35) and [his mother] Philippa of Lancaster Queen Consort Portugal (age 26) were married. She by marriage Queen Consort Portugal. She the daughter of [his grandfather] John of Gaunt 1st Duke Lancaster (age 46) and [his grandmother] Blanche Duchess of Lancaster. He the son of [his grandfather] Peter I King Portugal and [his grandmother] Inês Castro. They were half fourth cousins. He a great x 5 grandson of King Henry "Curtmantle" II of England. She a granddaughter of King Edward III of England.

On 31st October 1391 Edward "The Philosopher" I King Portugal was born to [his father] King John I of Portugal (age 39) and [his mother] Philippa of Lancaster Queen Consort Portugal (age 31). He a great grandson of King Edward III of England.

On 26th November 1405 [his brother-in-law] Thomas Fitzalan 10th Earl of Surrey 5th or 12th Earl of Arundel (age 24) and [his illegitimate half-sister] Beatrice Aviz Duchess Exeter (age 23) were married. [his uncle] King Henry IV of England (age 38) and Joanna of Navarre Queen Consort England (age 35) were present at their wedding feast. She the illegitmate daughter of [his father] King John I of Portugal (age 53) and Ines Peres. He the son of Richard Fitzalan 9th Earl of Surrey 4th or 11th Earl of Arundel and Elizabeth Bohun Countess Arundel and Surrey. They were half fourth cousin once removed. He a great x 2 grandson of King Edward I of England.

Around 1408 [his father] King John I of Portugal (age 56) was appointed 102nd Knight of the Garter by [his uncle] King Henry IV of England (age 40).

In 1415 [his brother-in-law] Gilbert Talbot 8th Baron Strange Blackmere 5th Baron Talbot (age 32) and [his illegitimate half-sister] Beatrice Aviz Duchess Exeter (age 33) were married. She the illegitmate daughter of [his father] King John I of Portugal (age 63) and Ines Peres. They were half fifth cousins. He a great x 3 grandson of King Edward I of England.

On 19th July 1415 [his mother] Philippa of Lancaster Queen Consort Portugal (age 55) died at Sacavém.

After 19th October 1418, and before 1427, [his brother-in-law] Thomas Fettiplace (age 35) and [his illegitimate half-sister] Beatrice Aviz Duchess Exeter (age 36) were married. She the illegitmate daughter of [his father] King John I of Portugal (age 66) and Ines Peres.

On 22nd September 1428 Edward "The Philosopher" I King Portugal (age 36) and Eleanor Trastámara Queen Consort Portugal were married. She by marriage Queen Consort Portugal. She the daughter of Ferdinand I King Aragon and Eleanor of Alberquerque Queen Consort Aragon (age 54). He the son of King John I of Portugal (age 76) and Philippa of Lancaster Queen Consort Portugal. They were first cousin once removed. He a great grandson of King Edward III of England.

In October 1429 [his son] John Aviz was born to Edward "The Philosopher" I King Portugal (age 37) and [his wife] Eleanor Trastámara Queen Consort Portugal. He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 4.40%. He died aged three in 1433.

On 7th January 1430 [his brother-in-law] Philip "Good" Valois III Duke Burgundy (age 33) and [his sister] Isabella Aviz Duchess Burgundy (age 32) were married. She by marriage Duchess Burgundy. She the daughter of [his father] King John I of Portugal (age 78) and [his mother] Philippa of Lancaster Queen Consort Portugal. He the son of John "Fearless" Valois Duke Burgundy and Margaret Wittelsbach Duchess Burgundy. They were third cousins. He a great x 4 grandson of King Edward I of England. She a great granddaughter of King Edward III of England.

On 27th November 1430 [his daughter] Philippa Aviz was born to Edward "The Philosopher" I King Portugal (age 39) and [his wife] Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%. She died aged eight in 1439.

On 15th January 1432 [his son] Alfonso "The African" V King Portugal was born to Edward "The Philosopher" I King Portugal (age 40) and [his wife] Eleanor Trastámara Queen Consort Portugal. He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 4.40%. He married (1) 1447 his first cousin Isabella Aviz Queen Consort Portugal and had issue (2) 1475 his niece Joanna "La Beltraneja" Trastámara Queen Consort Portugal, daughter of Henry IV King Castile and Joan Aviz Queen Consort Castile.

On 7th December 1432 [his daughter] Maria Aviz was born to Edward "The Philosopher" I King Portugal (age 41) and [his wife] Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%. She died aged less than one years old.

On 8th December 1432 [his daughter] Maria Aviz died.

On 20th January 1433 [his brother-in-law] John Holland 2nd Duke Exeter (age 37) and [his illegitimate half-sister] Beatrice Aviz Duchess Exeter (age 51) were married. She by marriage Duchess Exeter. She the illegitmate daughter of [his father] King John I of Portugal (age 81) and Ines Peres. He the son of John Holland 1st Duke Exeter and [his aunt] Elizabeth Lancaster Duchess Exeter. They were half fifth cousins. He a great grandson of King Edward III of England.

On 14th August 1433 [his son] John Aviz (age 3) died.

On 14th August 1433 [his father] King John I of Portugal (age 81) died at Lisbon [Map]. His son Edward (age 41) succeeded I King Portugal.

On 17th November 1433 [his son] Ferdinand Aviz 2nd Duke Viseu was born to Edward "The Philosopher" I King Portugal (age 42) and [his wife] Eleanor Trastámara Queen Consort Portugal. He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 4.40%. He married 1447 his first cousin Beatrice Aviz Duchess Viseu and had issue.

On 18th September 1434 [his daughter] Eleanor Aviz Holy Roman Empress was born to Edward "The Philosopher" I King Portugal (age 42) and [his wife] Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%. She married 16th March 1452 Frederick "Peaceful or Fat" Habsburg III Holy Roman Emperor, son of Ernest "The Iron" Habsburg I Duke Austria and Cymburgis Masovia Duchess Austria, and had issue.

In 1435 Edward "The Philosopher" I King Portugal (age 43) was appointed 149th Knight of the Garter by King Henry VI of England and II of France (age 13).

On 12th July 1435 [his son] Edward Aviz was born to Edward "The Philosopher" I King Portugal (age 43) and [his wife] Eleanor Trastámara Queen Consort Portugal. He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 4.40%. He died aged less than one years old.

On 12th July 1435 [his son] Edward Aviz died.

On 26th November 1436 [his daughter] Catherine Aviz was born to Edward "The Philosopher" I King Portugal (age 45) and [his wife] Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%.

On 13th September 1438 Edward "The Philosopher" I King Portugal (age 46) died. His son Alfonso (age 6) succeeded V King Portugal.

On 31st March 1439 [his daughter] Joan Aviz Queen Consort Castile was born to Edward "The Philosopher" I King Portugal and [his wife] Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%. She married 1455 her first cousin Henry IV King Castile, son of John II King Castile and Maria Trastámara Queen Consort Castile, and had issue.