João Manuel, Prince of Portugal

Portuguese prince
The basics

Quick Facts

IntroPortuguese prince
PlacesPortugal
wasPrince
Work fieldRoyals
Gender
Male
Religion:Catholic church
Birth3 June 1537, Évora, Évora Municipality, Évora District, Alentejo
Death2 January 1554Lisbon, Lisbon District, Portugal (aged 16 years)
Star signGemini
Family
Mother:Catherine of Austria, Queen of Portugal
Father:John III of Portugal
Siblings:Philip Prince of Portugal Manuel Prince of Portugal Afonso Prince of Portugal
Spouse:Joanna of Austria Princess of Portugal
Children:Sebastian of Portugal
The details

Biography

João Manuel, Prince of Portugal (Portuguese pronunciation: [ʒuˈɐ̃w̃ mɐnuˈɛɫ]) (3 June 1537 – 2 January 1554) was a Portuguese infante (prince), the eighth son of King John III of Portugal by his wife Catherine of Austria, daughter of Philip I of Castile and Joanna of Castile. As the heir to the throne he was styled Prince of Portugal.

Early life

Portrait of Prince João Manuel; Hieronymus Cock, c. 1550-1554.

João Manuel was born on 3 June 1537 in the Royal Palace of Évora and became the heir to the throne of Portugal in 1539. He survived his four older brothers who died in childhood but was a sickly teenager. The successive inter-marriages between the houses of Spain and Portugal are believed to have some responsibility for his ill health. In 1552 he married Princess Joanna of Spain, his first cousin, through both paternal and maternal line, daughter of his paternal aunt Isabella of Portugal and of his maternal uncle, Emperor Charles V.

Death

João Manuel died of what the sources refer to as consumption, which may refer to tuberculosis, on 2 January 1554, but some historians believe his death occurred as a result of diabetes, a disease he may have inherited from his maternal grandfather Philip I. Eighteen days later, a posthumous son was born from his marriage: the future King Sebastian I of Portugal.

Ancestry

Ancestors of João Manuel, Prince of Portugal
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
16. Edward, King of Portugal
 
 
 
 
 
 
 
8. Ferdinand, Duke of Viseu
 
 
 
 
 
 
 
 
 
 
 
17. Eleanor of Aragon
 
 
 
 
 
 
 
4. Manuel I of Portugal
 
 
 
 
 
 
 
 
 
 
 
 
 
 
18. John, Constable of Portugal
 
 
 
 
 
 
 
9. Beatrice of Portugal
 
 
 
 
 
 
 
 
 
 
 
19. Isabel of Barcelos
 
 
 
 
 
 
 
2. John III of Portugal
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
20. John II of Aragon
 
 
 
 
 
 
 
10. Ferdinand II of Aragon
 
 
 
 
 
 
 
 
 
 
 
21. Juana Enríquez
 
 
 
 
 
 
 
5. Maria of Aragon
 
 
 
 
 
 
 
 
 
 
 
 
 
 
22. John II of Castile
 
 
 
 
 
 
 
11. Isabella I of Castile
 
 
 
 
 
 
 
 
 
 
 
23. Isabella of Portugal
 
 
 
 
 
 
 
1. João Manuel, Prince of Portugal
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
24. Frederick III, Holy Roman Emperor
 
 
 
 
 
 
 
12. Maximilian I, Holy Roman Emperor
 
 
 
 
 
 
 
 
 
 
 
25. Eleanor of Portugal
 
 
 
 
 
 
 
6. Philip I of Castile
 
 
 
 
 
 
 
 
 
 
 
 
 
 
26. Charles I, Duke of Burgundy
 
 
 
 
 
 
 
13. Mary, Duchess of Burgundy
 
 
 
 
 
 
 
 
 
 
 
27. Isabella of Bourbon
 
 
 
 
 
 
 
3. Catherine of Austria
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
28. John II of Aragon (= 20)
 
 
 
 
 
 
 
14. Ferdinand II of Aragon (= 10)
 
 
 
 
 
 
 
 
 
 
 
29. Juana Enríquez (= 21)
 
 
 
 
 
 
 
7. Joanna of Castile
 
 
 
 
 
 
 
 
 
 
 
 
 
 
30. John II of Castile (= 22)
 
 
 
 
 
 
 
15. Isabella I of Castile (= 11)
 
 
 
 
 
 
 
 
 
 
 
31. Isabella of Portugal (= 23)
 
 
 
 
 
 
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