Leo I of Armenia

Leo I, called the Magnificent (1150–1219), was the tenth Roupenid lord of Armenian Cilicia and its first crowned king. After his father Stephen was murdered in 1165, Leo and his brother Roupen lived with their uncle. He succeeded Roupen III in 1187 and warred against Aleppo and Damascus, drawing Muslim forces away from the Crusader states.

He aided the Third Crusade with provisions and guides, extended his rule over Isauria, and was consecrated king at Tarsus in 1199. He died on 2 May 1219, leaving the crown to his young daughter Isabella.