John, Duke of Valencia de Campos
John of Portugal, occasionally surnamed Castro, was the eldest surviving son of King Peter I of Portugal by his mistress Inês de Castro.
He was a potential but unsuccessful contender for the Portuguese throne during the 1383 – 85 crisis of succession.
Teresa Lourenço
Teresa Gille Lourenço( Lisbon, 1330 –?), was the lover of King Peter I of Portugal and mother of King John I of Portugal.
Manuel, Prince of Portugal (1531–1537)
Manuel, Prince of Portugal( 11 November 1531 – 14 April 1537), was the Prince of Portugal from 1535 to his death in 1537.
He was the fifth child son of king John III of Portugal and Catherine of Austria.
In 1535, his father officially designated him as Prince of Portugal, taking the place of his eldest sister Infanta Maria Manuela.
However, after his premature death at five years old, his younger brother Infante Filipe became the next Prince of Portugal.
Peter I, Count of Urgell
Peter I  (February 23, 1187 - June 2, 1258) was the second son of King Sancho I of Portugal and his wife Dulce, infanta of Aragon, and would eventually become
Count of Urgell and Lord of the Balearic Islands.
Sancho I of Portugal
Sancho I , nicknamed "the Populator" , King of Portugal (Coimbra, 11 November 115426 March 1211)
was the second but only surviving legitimate son and fifth child of Afonso I of Portugal by his wife, Maud of Savoy.
Sancho succeeded his father and was crowned in Coimbra when he was 31 years old on 9 December 1185.
He used the title King of Silves from 1189 until he lost the territory to Almohad control in 1191.
Afonso, Prince of Portugal (1526)
Afonso, Prince of Portugal was the first son of king John III of Portugal and his queen, Catherine of Austria.
He was the Prince of Portugal but died in the same year he was born, in 1526.
Philip, Prince of Portugal
Filipe, Prince of Portugal( 25 March 1533 – 29 April 1539), was the Prince of Portugal from 1537 to his death in 1539.
He was the sixth child son of king John III of Portugal and Catherine of Austria.
In 1537, he succeeded his brother Prince Manuel as Prince of Portugal, after his premature death.
However, after his own premature death, two years later, after reaching six years old, his younger brother Infante João Manuel became the next Prince of Portugal.
Beatrice, Countess of Alburquerque
Beatrice of Portugal was Countess of Alburquerque as the wife of Sancho Alfonso of Alburquerque.
She was the daughter of Peter I of Portugal and his wife Inês de Castro.
Peter of Bergamo
Peter of Bergamo also called Peter of Almadura( 1400 ca.- 1482) was an Italian Dominican theologian.
Diogo, Constable of Portugal
Diogo of Portugal( 1425–1443) was a Portuguese royal prince, who briefly served as Constable of Portugal and Master of the Order of Santiago.
Diogo was the eldest son of John, Lord of Reguengos de Monsaraz, Infante of Portugal, and of his wife( and niece) Isabella of Barcelos.
Through his father, Diogo was the grandson of King John I of Portugal and through his mother, the grandson of Afonso of Barcelos( future first duke of Braganza).
John of Reguengos had been the master of the Order of Santiago since 1418 and Constable of Portugal since 1431.
Upon John's premature death in October 1442, the Portuguese regent, Peter of Coimbra decided to appoint John's son Diogo as the new Constable of Portugal.
Diogo was elected on 24 January 1443, as 11th Master of the Order of Santiago.
Diogo died a few days later, without issue.
Peter appointed his own son, also named Peter, to succeed him as constable.
These appointments were contested by Diogo's half- uncle( and grandfather), Afonso, Count of Barcelos.
Afonso had married the daughter of the late beatified constable Nuno Álvares Pereira, and believed their son, Afonso of Ourem, had superior rights to succeed as Constable of Portugal.
Peter of Coimbra challenged Barcelos and Ourem to provide documentary proof of the legitimacy of this lineage( which they were unable to produce).
Peter of Coimbra attempted to mollify them by creating the title of Duke of Braganza, and investing it in Afonso of Barcelos.
However, this failed to heal the breach between Peter and Afonso, which would only grow with time.

Question: Where was the place of death of Peter I, Count Of Urgell's father?
Answer: Coimbra