sentences:  It appears that Abd Allah convinced the powers of the city to accept a peace treaty.This treaty was granted in exchange for a tax, respect for social, economic and political structures to the communities that subscribed to it, as well as the continuity of their religious beliefs.After 707, the city was inhabited by Christians who were nominally in allegiance to the sovereignty of the Umayyad Caliphate, yet who, "de facto", enjoyed absolute autonomy.