Question: Who is the paternal grandfather of Maria Of Portugal (Nun)?
Sentence (from "Maria of Portugal (nun)"): Maria was born on 21 November 1264 in Coimbra and was for the majority of her life a nun in the Convent of the Lady Canons of Saint John ("Convento das Donas Cónegas de São João"), near the Monastery of Santa Cruz of Coimbra.
Relevant evidence: No