What was the role Byzantine emperor komnenos do during the first crusade?

Byzantine Emperor AlexiOS I Komnenos played a crucial role during the First Crusade by seeking to reclaim territories lost to the Seljuk Turks and securing military assistance from the Western Christian states. He requested that the crusaders take an oath of loyalty to him, which aimed to ensure that the crusade would align with Byzantine interests. While he initially supported the crusaders by providing them with supplies and troops, he later became wary of their intentions, leading to tensions between the Byzantine Empire and the crusading forces. Ultimately, his actions helped shape the course of the crusade and the relationship between the East and West.