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John IV
Joao IV.jpg
Preceded by Philip III
Succeeded by Afonso VI
Preceded by Teodósio II
Succeeded by Teodósio, Prince of Brazil
Personal details
Born 19 March 1604
The Ducal Palace of Vila Viçosa, Vila Viçosa, Kingdom of Portugal
Died 6 November 1656 (aged 52)
Ribeira Palace, Lisbon, Kingdom of Portugal
Spouse(s) Luisa de Guzmán
Religion Roman Catholicism

John IV (Portuguese language:João IV de Portugal , pronounced: [ʒuˈɐ̃w̃]; 19 March 1604 – 6 November 1656) was the King of Portugal and the Algarves from 1640 to his death. He was the grandson of Catherine, Duchess of Braganza,[1] who had in 1580 claimed the Portuguese crown and sparked the struggle for the throne of Portugal. John IV was nicknamed John the Restorer (João o Restaurador). On the eve of his death in 1656, the Portuguese Empire reached its zenith, spanning almost 3,000,000,000 acres (12,000,000 km2).

Early lifeEdit

John was born at Vila Viçosa and succeeded his father Teodosio II as Duke of Braganza[2] when the latter died insane in 1630. He married Luisa de Guzman (1613–1666), eldest daughter of Juan Manuel Pérez de Guzmán, 8th Duke of Medina Sidonia, in 1633.

Rubens John, Duke of Braganza

Portrait of John, when Duke of Braganza (c.1628), Rubens' workshop. Royal Castle, Warsaw

John had blond hair, blue eyes and an average height.[3]



Joao IV proclaimed king-modificated

The Acclamation of the King John IV.

He was raised to the throne of Portugal (of which he was held to be the legitimate heir) during the revolution on 1 December 1640, against King Philip III.[4]

Restoration WarEdit

His accession led to a protracted war (the Portuguese Restoration War) with Spain, which only ended with the recognition of Portuguese independence in a subsequent reign (1668). Portugal signed alliances with France (1 June 1641) and Sweden (August 1641) but by necessity its only contributions in the Thirty Years' War were in the field against Spain and against Dutch encroachments on the Portuguese colonies.

In Spain, a Portuguese invasion force defeated the Spanish at Montijo, near Badajoz, in 1644.

Imperial RecoveryEdit

Abroad, the Dutch took Portuguese Malacca (Jan 1641) and the Sultan of Oman captured Muscat (1650). Nevertheless the Portuguese, despite having to divide their forces among Europe, Brazil and Africa, managed to retake Luanda, in Portuguese Angola, from the Dutch in 1648 and, by 1654, had recovered most of Brazil, effectively ceasing to be a viable Dutch colony. This was countered by the loss of Portuguese Ceylon (present day Sri Lanka) to the Dutch who took Colombo in 1656.

Death and legacyEdit

King John IV died in 1656 and was succeeded by his son Afonso VI. His daughter, Catherine of Braganza, married King Charles II of England.[5]

John was a patron of music and the arts, and a considerably sophisticated writer on music; in addition to this, he was a composer. During his reign he collected one of the largest libraries in the world, but it was destroyed in the Lisbon earthquake of 1755. Among his writings is a defense of Palestrina, and a Defense of Modern Music (Lisbon, 1649). One famous composition attributed to him is a setting of the Crux fidelis, a work that remains highly popular during Lent amongst church choirs.[6] However, no known manuscript of the work exists, and it was first published only in 1869, in France. On stylistic grounds, it is generally recognized that the work was written in the 19th century.[7]

Marriages and descendantsEdit

John married Luisa de Guzmán,[8] daughter of Juan Manuel Pérez de Guzman, 8th Duke of Medina-Sidonia. From that marriage several children were born. Because some of John's children were born and died before their father became king they are not considered infantes or infantas of Portugal.

By Luisa de Guzman ( 13 October 1613 – 27 February 1666; married on 12 January 1633)
Infante Teodósio 8 February 1634 13 May 1653Prince of Brazil and 9th Duke of Braganza. Died young.
Ana de Bragança 21 January 1635 21 January 1635 
Infanta Joana (Joan) 18 September 1635 17 November 1653 
Infanta Catherine (Catarina) 25 November 1638 31 December 1705Commonly known as Catherine of Braganza. Queen consort through marriage to Charles II of England.
Manuel de Bragança 6 September 1640 6 September 1640 
Infante Afonso 21 August 1643 12 September 1683Prince of Brazil and 10th Duke of Braganza. Succeeded him as Afonso VI, King of Portugal.
Infante Peter (Pedro) 26 April 1648 9 December 1706Duke of Beja, Constable of the Kingdom, Lord of the Casa do Infantado and Regent of the Kingdom before succeeding his brother Afonso as Peter II, King of Portugal.
Illegitimate offspring
Maria de Bragança 30 April 1644 7 February 1693Natural daughter.



  1. Chisholm, Hugh. The encyclopædia britannica: a dictionary of arts, sciences ..., Volume 22. The encyclopedia. p. 148. 
  2. Dyer, Thomas Henry. 1593-1721. p. 340. 
  3. Sousa 1741, Vol VII, p. 238.
  4. Davenport, Frances Gardiner (2004). European Treaties Bearing on the History of the United States and Its Dependencies to 1648. The Lawbook Exchange. p. 324. ISBN 978-1584774228. 
  5. Chisholm, Hugh. The encyclopædia britannica: a dictionary of arts, sciences ..., Volume 22. The encyclopedia. p. 148. 
  6. Frank Sinatra. King John IV. p. 460. 
  7. Grove Dictionary of Music: Doubtful: Crux fidelis, 4vv, D-Dlb; ed. G. Schmitt, Anthologie universelle de musique sacrée (Paris, 1869); ed. J. Santos, A polifonia clássica portuguesa (Lisbon, 1937)
  8. Bourn, Thomas (1815). A Concise Gazetteer of the Most Remarkable Places in the World; with brief notices of the principal historical events ... connected with them, etc.. p. 413. 


  • Sousa, António Caetano de (in Portuguese). História genealógica da Casa Real portuguesa. VII. Lisbon: Silviana. 


External linksEdit

John IV of Portugal
Cadet branch of the House of Aviz
Born: 19 March 1604 Died: 6 November 1656
Regnal titles
Preceded by
Philip III
King of Portugal and the Algarves
Succeeded by
Afonso VI

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