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João 'o Bom' de Avis, I

Spanish: Juan I de Portugal, Rey de Portugal, Portuguese: Rei de Portugal D. João l de Borgonha 'O Rei da boa memória!
Also Known As: ""The False"", "King John I of Portugal", "The First /Joa~o/", "John I (Joao) King Of /Portugal/", "Le prince de bonne mâemoire", "(Portugues: João", "pronounced [ʒuˈɐ̃ũ] called the Good (sometimes the Great) or of Happy Memory", "Rei de Portugal"
Birthplace: Lisbon, Lisbon, Portugal
Death: August 14, 1433 (75)
Lisbon, Lisbon, Portugal
Place of Burial: Batalha, Leiria, Portugal
Immediate Family:

Son of Peter I the Just, King of Portugal and Teresa Gil Lourenço
Husband of Filipa de Lencastre, rainha consorte de Portugal
Partner of Inês Pires
Father of Afonso de Portugal, 1º duque de Bragança; Branca de Portugal; Beatrice of Portugal, Countess of Arundel; Beatrice de Avis de Coimbra; Branca, infanta de Portugal and 11 others
Half brother of NN de Portugal; Luís de Portugal; Maria de Portugal, Marquesa de Tortosa; Fernando I o Gentil, rei de Portugal; Infante Alfonso de Portugal y Castro and 3 others

Occupation: King of Portugal, duque de Valencia de Campos, 1º Duque de Valencia de Campos, Infante de Portugal, Duque de Valência de Campos, Rei de Portugal (1385-1433), Mestre de Avis, Rei de Portugal
Title: King of Portugal from 1385 until his death in 1433. He is recognized chiefly for his role in Portugal's victory in a succession war with Castile, preserving his country's independence and establishing the Aviz (or Joanine) dynasty on the Portuguese (Wiki)
Managed by: Private User
Last Updated:

About John of Aviz

Big error: The portuguese version of the name states him as ' D. João I de Borgonha', which is a big mistake as he was the firs king of the House of Avis. Rectify, please.

John I, Portuguese: João, pronounced [%CA%92u%CB%88%C9%90%CC%83%C5%A9], (Lisbon, 11 April 1357 – 14 August 1433 in Lisbon) called the Good (sometimes the Great) or of Happy Memory, was the tenth King of Portugal and the Algarve and the first to use the title Lord of Ceuta. He was the natural son of Peter I by a noble Galician woman named Teresa Lourenço, daughter of Lourenço Martins, o da Praça, and wife Sancha Martins. In 1364 he was created Grand Master of the Order of Aviz. He became king in 1385, after the 1383–1385 Crisis.

On the death of his half-brother Ferdinand I in October 1383, without a male heir, strenuous efforts were made to secure the succession for princess Beatrice, Ferdinand's only daughter. As heiress presumptive, Beatrice had married king John I of Castile, but popular sentiment was against an arrangement in which Portugal would have become virtually united with Castile. The 1383–1385 Crisis followed, a period of political anarchy, when no monarch ruled the country.

On April 6, 1385, the council of the kingdom (cortes in Portuguese) met in Coimbra and declared John, then Master of Aviz, king of Portugal. This was in effect a declaration of war against Castile and its claims to the Portuguese throne. Soon after, the king of Castile invaded Portugal, with the purpose of conquering Lisbon and removing John I from the throne. John I of Castile was accompanied by French allied cavalry while English troops and generals took the side of John (see Hundred Years War). John I then named Nuno Álvares Pereira, his loyal and talented supporter, general and protector of the Kingdom. The invasion was repelled during the summer after the Battle of Atoleiros and, especially, the decisive battle of Aljubarrota (August 14, 1385), where the Castilian army was virtually annihilated. John I of Castile then retreated and the stability of John I's throne was permanently secured.

On 11 February, 1387, John I married Philippa of Lancaster, daughter of John of Gaunt, who had proved to be a worthy ally, consolidating the Anglo-Portuguese Alliance that endures to the present day.

After the death of John I of Castile in 1390, without leaving issue by Beatrice, John I of Portugal ruled in peace and pursued the economic development of the country. The only significant military action was the siege and conquest of the city of Ceuta in 1415. By this step he aimed to control navigation of the African coast. But in longer perspective, this was the first step opening the Arabian world to medieval Europe, which in fact led to the Age of Discovery with Portuguese explorers sailing across the whole world. It should be noted that the global Muslim population had climbed to about 8 per cent as against the Christian population of 14 per cent by 1400.

Contemporaneous writers describe him as a man of wit, very keen on concentrating the power on himself, but at the same time with a benevolent and kind personality. His youthful education as master of a religious order made him an unusually learned king for the Middle Ages. His love for knowledge and culture was passed to his sons: Duarte, the future king, was a poet and a writer, Pedro, the duke of Coimbra, was one of the most learned princes of his time and Prince Henry the Navigator, the duke of Viseu, started a school of navigation and invested heavily in science and development of nautical topics. In 1430, his only surviving daughter, Isabella, married Philip the Good, Duke of Burgundy and enjoyed an extremely refined court in his lands; she was the mother of Charles the Bold.

Nascimento: ou 14 de agosto de 1356. Casamento: ou 11 de fevereiro de 1387.

Contents [hide]

1 Genealogical data

1.1 Ancestors

1.2 Marriages and descendants

2 References

[edit] Genealogical data

[edit] Ancestors

John's ancestors in three generations John I of Portugal Father:

Pedro I of Portugal Father's father:

Afonso IV of Portugal Father's father's father:

Denis of Portugal

Father's father's mother:

Elizabeth of Aragon

Father's mother:

Beatrice of Castile Father's mother's father:

Sancho IV of Castile

Father's mother's mother:

María de Molina


Teresa Lourenço Mother's father:

Lourenço Martins Mother's father's father:


Mother's father's mother:


Mother's mother:

Sancha Martins Mother's mother's father:


Mother's mother's mother:


[edit] Marriages and descendants

John I married at Oporto on February 2, 1387 Philippa of Lancaster, daughter of John of Gaunt, 1st Duke of Lancaster and Blanche of Lancaster. From that marriage were born several famous princes and princesses of Portugal (Infantes) that became known as the Illustrious Generation (Portuguese: Ínclita Geração).

Name Birth Death Notes

By Philippa of Lancaster (1359–July 19, 1415; married on February 2, 1387)

Infanta Branca July 30, 1388 March 6, 1389

Infante Afonso July 30, 1390 December 22, 1400

Infante Duarte October 31, 1391 September 13, 1438 Who succeeded him as Duarte I, 11th King of Portugal.

Infante Pedro December 9, 1392 May 20, 1449 Duke of Coimbra. Died in the Battle of Alfarrobeira.

Infante Henrique December 4, 1394 November 13, 1460 Known as Henry the Navigator. Duke of Viseu and Grand-Master of the Order of Christ.

Infanta Isabel February 11, 1397 December 11, 1471 Duchess Consort of Burgundy by marriage to Philip III, Duke of Burgundy.

Infanta Branca April 11, 1398 July 27, 1398

Infante João January 13, 1400 October 18, 1442 Constable of the Kingdom and grandfather of Isabella of Castile.

Infante Fernando September 29, 1402 June 5, 1443 Grand Master of the Order of Aviz. Died in captivity in Fes, Morocco.

By Inês Peres Esteves (c. 1350–1400?)

Afonso August 10, 1377 December 15, 1461 Natural son and 1st Duke of Braganza.

Branca 1378 1379 Natural daughter.

Beatriz c. 1382 October 25, 1439 Natural daughter. Countess Consort of Arundel by marriage to Thomas Fitzalan, 12th Earl of Arundel. Countess Consort of Huntingdon by marriage to John Holland, 2nd Earl of Huntingdon, later Duke of Exeter.

Juan de Borgoña y Castro (¿?, 1349 - Salamanca, Castilla, 1387). Infante de Portugal y duque de Valencia de Campos. Hijo de Pedro I el Justiciero y de la noble gallega Inés de Castro. Juan fue uno de los potenciales candidatos a la corona portuguesa durante la crisis de 1383-1385.

Considerálo como Infante de Portugal es una controversia. Muchos historiadores lo consideran apenas un hijo natural de Pedro I, porque el título de Infante de Portugal nunca le fue otorgado. Otros lo consideran verdaderamente un Infante de Portugal debido al casamiento secreto del rey con su madre.

Después de la muerte de su madre en 1355, juntamente con su hermano Dionisio fugó para Castilla, donde permaneció durante la Crisis de 1383-1385, donde foi uno de los pretendientes al reino de Portugal, en coincidencia con la infanta Beatriz de Portugal (hija de su medio-hermano Fernando I el Hermoso), su medio-hermano Juan, Maestre de Avis y su hermano Dionisio, Señor de Cifuentes. Su conexión con Castilla eventualmente lo apartó del Trono Portugués.

Fue defendido por el Partido Legitimista-Nacionalista, dirigido por Martín Vasques da Cunha y sus hijos y hermanos, durante las Cortes de Coimbra de 1385. La alta nobreza defendía a su nombre como el legítimo pretendente ao trono.

El Partido Nacionalista, liderado por el Maestre de Avis, expugnaba la hipótesis de Juan y de Dionisio (hijos de Pedro e Inés de Castro) sean los preferidos al trono, pues una vez que por alturas de las guerras entre Fernando I contra Castilla, estos habríam peleado contra Portugal.

Se casó dos veces. La primera con Maria Téllez de Menezes, una noble castellana. Su segundo matrimonio fue con Constáncia de Castilla, Señora de Alba de Tormes.


De su matrimonio con María Téllez de Meneses:

Fernando (¿? - ¿?), Señor de Eça.

De su matrimonio con Constáncia de Castilla:

María (¿? - ¿?), Señora de Valencia de Campos;

Beatriz (¿? - ¿?);

Juana (¿? - ¿?).

Obtenido de ""

John I of Portugal

From Wikipedia, the free encyclopedia


Infanta Branca (1388–1389)

Infante Afonso (1390)

Infante Duarte (future Edward I) (1391–1438)

Infante Pedro, Duke of Coimbra (1392–1449)

Infante Henrique, Duke of Viseu (Henry the Navigator) (1394–1460)

Infanta Isabel, Duchess of Burgundy (1397–1471)

Infanta Branca (1398)

Infante João (1400–1442)

Infante Fernando, the Saint Prince (1402–1443)

Afonso, 1st Duke of Braganza (c. 1380–1461; natural son)

Beatriz, Countess of Arundel and Huntingdon (c. 1382–1439; natural daughter)

view all 21

John of Aviz's Timeline

April 11, 1358
Lisbon, Lisbon, Portugal
August 10, 1377
Castelo de Veiros, Estremoz, Alentejo, Portugal
July 13, 1388
Lisbon, Portugal
July 30, 1390
Santarém, Portugal
October 31, 1391
Viseu, Viseu, Portugal
December 9, 1392
Lisboa, Portugal
January 27, 1394
Santarem, Portugal