Question: When is Infante Dinis, Duke Of Porto's father's birthday?
Sentence (from "Duarte Pio, Duke of Braganza"): "Dom" Duarte Pio, Duke of Braganza (Duarte Pio João Miguel Gabriel Rafael; born 15 May 1945) is a claimant to the defunct Portuguese throne, as the head of the House of Braganza.
Relevant evidence: Yes