Question: When is Infante Dinis, Duke Of Porto's father's birthday?
Sentence (from "Infante Dinis, Duke of Porto"): The third child of "Dom" Duarte Pio, Duke of Braganza, the current pretender to the defunct throne of Portugal, and "Dona" Isabel Inês de Castro Curvello de Herédia, the Duke of Porto is second in the line of succession to the former Portuguese throne, after his elder brother, "Dom" Afonso, Prince of Beira.
Relevant evidence: Yes