Question: Who is the paternal grandfather of Maria Of Portugal (Nun)?
Sentence (from "Duarte of Portugal, 4th Duke of Guimarães"): Duarte of Portugal, 4th Duke of Guimarães( October 7, 1515 in Lisbon – September 20, 1540 in Lisbon) was a Portuguese" infante"( prince); the sixth son of King Manuel I of Portugal and his wife Maria of Aragon.
Relevant evidence: No