Infante João, Lord of Reguengos de Monsaraz

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Portuguese royalty
House of Avis

John I Children    Infante Duarte (future Edward I)    Infante Pedro, Duke of Coimbra    Henry the Navigator (Infante Henrique, Duke of Viseu)    Infanta Isabel, Duchess of Burgundy    Infante João, Lord of Reguengos    Infante Fernando, the Saint Prince    Afonso, Duke of Braganza (illegitimate)    Beatriz, Countess of Arundel (illegitimate) Grandchildren include    Infanta Isabel of Coimbra, Queen of Portugal Edward Children    Afonso, Prince of Portugal (future Afonso V)    Infante Fernando, Duke of Viseu    Infanta Leonor, Holy Roman Empress    Infanta Catarina    Infanta Joana, Queen of Castile Grandchildren include    Infante Manuel, Duke of Beja (future Manuel I)    Infanta Leonor of Viseu, Queen of Portugal Great-Grandchildren include    Jaime, Duke of Braganza, Prince of Portugal Afonso V Children include    João, Prince of Portugal    Blessed Joana, Princess of Portugal    João, Prince of Portugal (future John II) John II    Afonso, Prince of Portugal    Jorge, Duke of Coimbra (illegitimate)

The Infante João, 1st Lord of Reguengos de Monsaraz, Colares and Belas (pron. IPA: [ʒu'ɐ̃ũ]; English: John) (Santarém, January 13, 1400 – October 18, 1442, Alcácer do Sal) was a Portuguese infante of the House of Aviz, son of King John I of Portugal and his wife Philippa of Lancaster.

He was the 3rd Constable of Portugal, after the death of Nuno Álvares Pereira, and the 10th Master of the Order of St. James. He was also the 1st Lord of Reguengos de Monsaraz, Colares and Belas. In 1424, John married his half-niece Isabella of Braganza, daughter of his half-brother Afonso, Duke of Braganza.

During the reign of his brother Edward, John joined his brother Pedro, Duke of Coimbra against the expedition to Tangier that would end in a disaster. After the disaster he defended that the recently conquered Ceuta should be offered in exchange for his brother Ferdinand, the Saint Prince, that was captive in Tangier, something that was against Ferdinand's wishes.

In the beginning of his nephew Afonso V's reign, the regency of the kingdom was delegated on Queen Mother Leonor of Aragon (his sister-in-law). This decision in the will of late King Edward was controversial and soon popular discontent grew. It was John who installed himself in the capital Lisbon and avoided a rebellion. After that he refused the proposals for an alliance with Leonor of Aragon and his half-brother Afonso, Duke of Braganza, and defended the summoning of the Cortes to name Pedro, Duke of Coimbra the new regent.

[edit] Issue

• Diogo of Portugal, Constable of Portugal (1423–1443)
• Isabel of Portugal (1428–1496), married to John II of Castile and mother of Isabella I of Castile and Alfonso, Prince of Asturias
• Beatriz of Portugal (1430–1506), married to Infante dom Ferdinand, Duke of Viseu
• Filipa of Portugal (1432 – c. 1450), Lady of Almada

[edit] References

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