Irene Palaiologina (Byzantine empress)

Irene Palaiologina (d. after 1356), was the Empress consort of Matthew Kantakouzenos.

Irene was a daughter of despotēs Demetrios Palaiologos and his wife Theodora. Her paternal grandparents were Andronikos II Palaiologos and his second wife Irene of Montferrat. The paternal uncles of Irene included Michael IX Palaiologos and Theodore I, Marquess of Montferrat. Her maternal aunts included Simonida.

On 26 October 1341, her father-in-law John VI was crowned emperor at Didymoteicho. His rival John V Palaiologos reigned from Constantinople. The civil war between them lasted until 1347. On 3 February 1347, the two sides reached an agreement. John VI was accepted as senior emperor with John V as his junior co-ruler.

On 15 April 1353, Matthew was declared co-emperor and the conflict between John V and John VI restarted over what was seen as an attempt of John VI to secure his succession. Irene became thus the third Empress consort along with her mother-in-law Irene Asanina (wife of John VI) and sister-in-law Helena Kantakouzene (wife of John V).

On 4 December 1354, John VI abdicated and he and Asanina retired to separate monasteries while John V secured control of Constantinople. Matthew was able to kept his title and part of Thrace as his own dominion. On February, 1356, he and Irene were captured by Serbian forces and remained in captivity until delivered to John V in December, 1357. Matthew was forced to abdicate and Irene ceased being considered an Empress. The date of her death was not recorded.

The History of John VI Kantakouzenos records the marriage of Irene to Matthew Kantakouzenos in 1340.

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