sentences:  After Kalojan's death in 1207, the city may have reverted to Latin rule, but there is no evidence of this; at any rate, by 1220 it had been occupied by the ruler of Epirus, Theodore Komnenos Doukas, for in that year the "doux" Constantine Pegonites is attested as governing the city in his name.It changed hands again in 1246, being taken by the Emperor of Nicaea John III Doukas Vatatzes, and formed part of the restored Byzantine Empire after 1261.The 14th century was tumultuous