Renier of Montferrat
| Renier of Montferrat | |
|---|---|
| Caesar | |
Manuscript portrait depicting the murder of Renier and his wife | |
| Investiture | February 1180 |
| Born | 1162 Piedmont |
| Died | 1183 Constantinople |
| Spouse | Maria Komnene |
| House | Aleramici |
| Father | William V of Montferrat |
| Mother | Judith of Babenberg |
Renier of Montferrat (Italian: Ranieri di Monferrato; ) (1162–1183) was the fifth son of William V of Montferrat and Judith of Babenberg. He became son-in-law of the Byzantine Emperor Manuel I Komnenos and Caesar in 1180, and was later murdered in a Byzantine power-struggle.