sentences:  At Philadelphia, 18,000 Turkish soldiers (possibly those of Aydinids) were left dead, the work of the Catalans.However, the Byzantines got more than what they bargained for; the mercenaries were difficult to restrain and consequently much of the reconquered territory was laid to waste.When their leader Roger de Flor was assassinated in Gallipoli on 3 April 1305 by Michael IX Palaeologus followed by a massacre of 1,300 Catalans, the mercenaries began a two-year pillage in revenge and crossed over to Thrace and Macedonia under the command of their new leader, Berenguer d'Entença, where further raiding occurred.