Alfonso VII of León and Castile
In 1134 William VI was with King Alfonso VII of León and Castile when he besieged and took Zaragoza. There he paid homage to and became a vassal of Alfonso. The submission of García Ramírez, the king of Navarre, as well as "many other nobles from Gascony and France had become his vassals" was the justification for Alfonso's coronation as Emperor of Spain in 1135. Among the vassals from Languedoc only William of Montpellier is singled out by name in the "Chronica Adefonsi imperatoris", the contemporary account of Alfonso's reign: