Antonio Muniz Leite alegaba ser descendiente de Pedro I de Portugal y Doña Ines de Castro

“Com D.Inês Pires de Castro (*1309 ou 10 + 1355), dez anos mais velha que ele, teve: Afonso que morreu criança; João duque de Valença, que foi pai de D.Fernando de Eça , por sua vez, pai de Catarina de Eça que casou-se com Pedro Gomes de Abreu neto; Dinis e Brites”

Mas quem sabe somos mesmo descendentes de Inês de Castro, coroada em Alcobaça em 1357, depois de morta, com os nobres a beijarem a sua mao (ou o que restou dela)? Duvido muito, mas isso pelo menos nos serve para rever esta grande historia e reler Camoes!
Nelson Jorge, Sept. 2002

Inez was buried at Alcobaca with extraordinary magnificence, in a tomb of white marble, surmounted by her crowned statue; and near her sepulchre Pedro caused his own to be placed. The monument, after repeatediy resisting the violence of curiosity, was broken into in 1810 by the French soldiery; the statue was mutilated, and the yellow hair was cut from the broken skeleton, to be preserved in reliquaries and blown away by the wind. The children of Inez shared her habit of misfortune. From her brother, however, Alvaro Perez de Castro, the reigning house of Portugal directly descends.
http://74.1911encyclopedia.org/C/CA/CASTRO_Y_BELLVIS_GUILLEN_DE.htm

Inês de Castro belonged to a powerful family from Galiza, and was descendent of Sancho IV, the king of Castile. She was also connected to the Albuquerque family. Afonso Sanchez (bastard son of Dom Diniz, King of Portugal), hated by Dom Afonso IV was married with the Albuquerque castle's owner. This lady was seen as a mother by D. Inês because she had raised her. This will be the first cause of hate between Afonso IV and D. Inês de Castro.
In 1350 began in Castile a revolt of the great lords against Pedro I of Spain. The leader of this rebellion was João Afonso de Albuquerque, son of Afonso Sanches and therefore a sort of adoptive brother of D. Inês. He certainly used his influence on Inês in order to get D. Pedro, who had an affair with her, involved in the castilian civil wars. His attempt to influence D. Pedro was so strong that in 1354 João Afonso sent to Portugal a brother of D. Inês to convince D. Pedro to claim for himself the throne of Castile (D. Pedro was the grandson of Sancho IV). D. Pedro refused this because his father was strongly against it.
In order to stop him, D. Afonso IV ordered the death of Inês de Castro when D. Pedro was absent. The executioners were Álvaro Gonçalves, Diogo Lopes Pacheco and Pedro Coelho, men acting under the king's protection.
Hurt by his father's verdict, D. Pedro rebelled and for several months his troops swept the country in such a way that Oporto was under siege. As soon as D. Pedro became King and in spite of his promises of forgiveness, he captured the assassins of D. Inês who had before escaped to Castile in order to avoid his fury. One of them managed to escape but two were captured, tortured and executed. D. Pedro took the heart of one of them through the back and from the other he took the heart through the chest. In 1360 the King announced that he had married Inês secretly and, on that occasion, he gave the order for their graves to be built in the monument of Alcobaça, where he too was buried.
http://www.supernet.pt/hotelagrimas/english/history.html#lenda

Coimbra is known as the place of the passion between Pedro and Inês. It was here that they met for the first time. The "saudosos campos do Mondego" (Fountain of Loves) and "Fonte dos Amores" (Love fountain) would have been the scenery for they forbidden encounters. After the death of D. Constança, Pedro and Inês became to live in the Royal Palace, near Santa Clara-a-Velha. It was here that their three sons were born: D. Pedro, D. Dinis and D. Beatriz. It was also here (or very near) that was executed the order that condemned D. Inês. The tradition says that this tragedy took place in "Fonte das Lágrimas" (The Fountain of the Tears).
http://www.supernet.pt/hotelagrimas/english/reencounter.html

Otras fuentes dan 4 descendientes de la pareja.