Irene of Montferrat

Irene of Montferrat (c. 1274–1317), born Yolande at Casale, was the daughter of William VII, Marquess of Montferrat. In 1284 she married Emperor Andronikos II Palaiologos as his second wife and was renamed Eirene, bringing her family's claim to the Kingdom of Thessalonica.

When her brother John I died without male heirs in 1305, her son Theodore inherited the Margraviate of Montferrat. She left Constantinople in 1303, kept her own court in Thessalonica, and died of fever at Drama in 1317. Her daughter Simonis married King Stefan Milutin of Serbia.