Question: The queen of Castile, Joanna of Castile, married this member of the house of Habsburg who was the son of which monarch?
Sentence (from "Philip I of Castile"): The son of Holy Roman Emperor Maximilian I, at the age of three Philip inherited the greater part of the Duchy of Burgundy and the Burgundian Netherlands (as Philip IV) from his mother, Mary, and at 27 briefly succeeded to the Crown of Castile as the husband of Queen Joanna, who was also heir presumptive to the Crown of Aragon.
Relevant evidence: Yes