Ruben I, Prince of Armenia

Ruben I (also transliterated Rupen or Roupen in Western Armenian from Ռուբեն Ա; 1025–1095) was the founder of the Kingdom of Cilician Armenia. Initially lord of Gobidar and Goromosol, he declared independence when he launched a rebellion against the Byzantine Empire in 1080 and seized the fortress of Partzerpert. Born in Armenia, Ruben was likely a member of Bagratuni Dynasty that had ruled in Cilicia after the fall of Ani in 1045. He was related to Gagik II, the last King of Ani.

Ruben died in 1095 and was buried at the monastery of Castalon. His son Constantine I of Armenia succeeded him.

Notes

Ghazarian, Jacob, (2000), The Armenian Kingdom in Cilicia During the Crusades, Routledge Curzon.
The Barony of Cilician Armenia (Kurkjian's History of Armenia, Ch. 27)