Question: What is the date of death of Ottavio Farnese (1598–1643)'s father?
Sentence (from "Ranuccio I Farnese, Duke of Parma"): The husband of Margherita Aldobrandini, niece of Pope Clement VIII, Ranuccio, the son of a Portuguese infanta, was considered as a potential king of Portugal when his childless great-uncle King Henry I died.
Relevant evidence: No