Ruben I

Ruben I, (Armenian: Ռուբեն Ա; 1025–1095) was the first lord of Armenian Cilicia from 1080 until his death.

The first movement of Armenian nobles immigrating to the Byzantine Empire began during the reign of Emperor Maurice, when Armenians voluntarily joined the Byzantine army. Mass Armenian immigration began when the Seljuks raided the Aras River, leaving the areas around Lake Van unprotected. In the 10th century, a large number of Armenian settlers settled in Cilicia.