In the aftermath of the First Crusade Alexios I launched a counter-attack Attack which regained Recovering the territories lost .

Alexios was also able to rapidly quell the threat Warning of Abu ' l Qasim , the Seljuk governor of Nicaea , who attempted Hold to create Creating a fleet of his own at Abydos in ca .

Alexios I Komnenos ' son , John II Komnenos inherited a sizable amount of land in Western Asia Minor , although the port city of Antalya was under Seljuq siege .

The expedition Conquering was a reaction Response to the appeal Statement for military aid by Byzantine Emperor Alexios I Komnenos .