Original: Leo II or Leon II (occasionally numbered Leo III;, Levon II; c. 1236 1289) was king of the Armenian Kingdom of Cilicia, ruling from 1269Cambridge Medieval History, Volume IV, p. 634/1270 to 1289.
Simplified: Leo (or Leon) III of Armenia (c.1236-1289) was king of the Armenian Kingdom of Cilicia, ruling from 1270 to 1289.