Question: What is the date of birth of Luís Filipe, Prince Royal Of Portugal's father?
Sentence (from "Luís Filipe, Prince Royal of Portugal"): After his grandfather King Luís I of Portugal died, he became Prince Royal of Portugal with the subsidiary titles 21st Duke of Braganza, 20th Marquis of Vila Viçosa, 28th count of Barcelos, 25th count of Ourém, 23rd count of Arraiolos and 22nd count of Neiva.
Relevant evidence: No