Gabrielopoulos had been a Byzantine vassal, but the neighbouring ruler of Epirus, John II Orsini, quickly moved to take over his territories.
[3] The Byzantines soon regained control of most of the region, although the historian Božidar Ferjančić doubts Kantakouzenos' assertion that the Epirote forces were completely expelled and all of Thessaly recaptured at that time, pointing out the lack of imperial charters in western Thessaly before 1336, and insists that the imperial forces captured only the eastern portions of the region in 1332/3.
[2][4] At the latest by the time of John II Orsini's death in 1335, Monomachos and Andronikos III were able to extend Byzantine control over western Thessaly as well, and even to advance into Epirus proper and capture Ioannina.
The Epirotes rallied around their young ruler, Nikephoros II Orsini, who escaped Byzantine custody and returned to Epirus with troops from the Angevin court of Naples.
Nikephoros was accorded the title of panhypersebastos and sent to Thessalonica, where his mother and sister already lived, and Epirus returned to Byzantine control with John Angelos as governor.