Question: What nationality is Bianca Lancia's husband?
Sentence (from "Frederick II, Holy Roman Emperor"): Viewing himself as a direct successor to the Roman emperors of antiquity, he was Emperor of the Romans from his papal coronation in 1220 until his death; he was also a claimant to the title of King of the Romans from 1212 and unopposed holder of that monarchy from 1215.
Relevant evidence: No