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| Theodora Palaiologina | |
|---|---|
| Empress consort of Bulgaria | |
| Tenure | 1308–1321 1324–1330 |
| Born | Unknown Byzantine Empire |
| Spouse | Theodore Svetoslav Michael Shishman |
| House | Palaiologos |
| Father | Michael IX Palaiologos |
| Mother | Rita of Armenia |
Theodora Palaiologina (Bulgarian: Теодора Палеологина, Greek: Θεοδώρα Παλαιολογίνα, fl. 1308–1330) was a Byzantine princess who became a Bulgarian empress as wife of the emperors Theodore Svetoslav from 1308 to his death in 1321, and Michael Shishman from 1324 to his fall in the Battle of Velbazhd on 28 July 1330.
She was a daughter of the Byzantine emperor Michael IX Palaiologos (r. 1295–1320), son and co-ruler of Andronikos II Palaiologos (r. 1282–1328), and Rita of Armenia who was a daughter of the ruler of the Armenian Kingdom of Cilicia. She was a sister of Byzantine emperor Andronikos III Palaiologos (r. 1328–1341).