Philip I of Courtenay
Philip I of Courtenay (1243–1283) was titular Latin Emperor of Constantinople from 1273, ruling in exile after the Greeks recovered the city in 1261. He was the son of Emperor Baldwin II; as a boy his father mortgaged him to Venetian merchants.
By the Treaty of Viterbo in 1267 he was betrothed to Beatrice, daughter of Charles I of Sicily, and they married in 1273. Philip held only the Latin lands in Greece and died in 1283, his claim inherited by his daughter Catherine.