Zampia Palaiologina[1][2] (Greek: Ζαμπíα Παλαιολογίνα),[3] also known as Zampea[4] or Isabella,[2][4] was a Byzantine princess of the Palaiologos dynasty.[5] She was an illegitimate daughter of Emperor John V Palaiologos (r. 1341–1391) and married the envoy and translator Hilario Doria, with whom she had at least two daughters. Her name may not have been Zampia, which could have been applied to her by later historians out of confusion with one of her daughters of this name.