Quem se casou com Elena di Bosco?

Boniface I, usually known as Boniface of Montferrat (Italian: Bonifacio del Monferrato; Greek: Βονιφάτιος Μομφερρατικός, romanized: Vonifatios Momferratikos; c. 1150 – 4 September 1207), was the ninth Marquis of Montferrat (from 1192), a leader of the Fourth Crusade (1201–04) and the king of Thessalonica (from 1205).