| Ruben I Ռուբեն Ա | |
|---|---|
| Lord of Cilicia | |
| Lord of Armenian Cilicia | |
| Reign | c. 1081 – 1095 |
| Predecessor | (none) |
| Successor | Constantine I |
| Born | 1025 |
| Died | 1095 (aged 69–70) Kormogolo[citation needed] |
| Burial | Monastery of Castalon |
| Issue | Constantine I ? Thoros of Marash |
| House | Roupenians |
Ruben I, (Armenian: Ռուբեն Ա;[a] 1025/1035[citation needed]–1095) was the first lord of Armenian Cilicia from c. 1081[citation needed] until his death.
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