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 .

Urban 's convocation Come_together of the Council of Clermont was specifically dedicated to this purpose , proposing siege warfare Hostile_encounter against the recently occupied cities of Nicaea and Antioch , even though Urban 's speech Social_event at Clermont in the testimony of witnesses writing Writing after 1100 was phrased Communication to allude to the re-conquest Recovering of Jerusalem and the Holy Land as additional goals .

The crusaders marched Self_motion into Anatolia , capturing Conquering Nicaea in June 1097 and Antioch in June 1098 .

Before the conflict Hostile_encounter petered out , the Seljuqs managed to take more territory from the weakened Cause_change_of_strength Empire of Nicaea until the Sultanate itself was taken over Conquering by the Mongols , leading to Causation the rise Cause_change_of_position_on_a_scale of the ghazis and the conclusive Byzantine–Ottoman wars Hostile_encounter .