Isabel of Coimbra
Infanta Isabel of Coimbra( Isabella of Portugal)
( 1 March 1432 – 2 December 1455) was a Portuguese infanta and a queen consort of Portugal as the first spouse of King Afonso V of Portugal.
Beatriz, Duchess of Viseu
Infanta Beatriz of Portugal( 13 June 1430 – 30 September 1506) was a Portuguese infanta, daughter of John, Constable of Portugal( fourth son of King John I of Portugal and his wife Philippa of Lancaster) and Isabella of Barcelos a daughter of Afonso I, Duke of Braganza.
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 III of Portugal
Afonso III (rare English alternatives: "Alphonzo" or "Alphonse"), or "Affonso" (Archaic Portuguese), "Alfonso" or "Alphonso" (Portuguese-Galician) or "Alphonsus" (Latin), the Boulonnais (Port. "
o Bolonhês"), King of Portugal (5 May 121016 February 1279) was the first to use the title "King of Portugal and the Algarve", from 1249.
He was the second son of King Afonso II of Portugal and his wife, Urraca of Castile; he succeeded his brother, King Sancho II of Portugal, who died on 4 January 1248.
Afonso of Portugal, Lord of Leiria
Afonso of Portugal( c. 1288 – Lisbon, c. 1300;; or" Alphonse") was a Portuguese noble, son of Afonso of Portugal, Lord of Portalegre and his wife Violante Manuel.
He was granted the title of Lord of Leiria.
Afonso of Portugal died in 1300 when he was about twelve years of age without having married and without leaving any offspring.
João de Melo
João de Melo( 1405- 1486) was a Portuguese nobleman, alcaide- mor of Serpa, and copeiro-mor( Master of the Ceremonies) of Afonso V of Portugal.
Sancho Nunes de Barbosa
Sancho Nunes de Barbosa, Lord of Celanova( 1070- 1130) was a Portuguese nobleman.
He was the son of Nuño Gutiérrez, Count of Celanova, and Sancha Gomes.
He was married twice first with Sancha Henriques, daughter of Henry, Count of Portugal.
His second marriage was to Teresa Afonso, possible daughter of Afonso I of Portugal.
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.
Urraca of Portugal
Urraca of Portugal(( Coimbra, 1148 – Wamba, Valladolid, 1211) was an infanta of Portugal, daughter of Afonso Henriques, the first king of Portugal, and his wife, Queen Maud of Savoy.
She was queen consort of León as the wife of King Ferdinand II and the mother of Alfonso IX.
Afonso of Portugal, Lord of Portalegre
Infante Afonso of Portugal (8 February 1263, in Lisbon – 2 November 1312, in Lisbon; ; or "Alphonse") was a Portuguese "infante" (prince), son of King Afonso III of Portugal and his second wife Beatrice of Castile.
He was titled Lord of Portalegre, Castelo de Vide, Arronches, Marvão and Lourinhã.
Afonso was born on 8 February 1263 and in 1287 married Violante Manuel, daughter of Castilian" Infante" Manuel of Castile.
Afonso died on 2 November 1312 in Lisbon.

Question: Who is the paternal grandfather of Afonso Of Portugal, Lord Of Portalegre?