 In 1528 the conquest of Cuzcatlán was completed and the city of San Salvador was established.On 18 December 1527, the king of Spain named Alvarado as governor of Guatemala; two days later he granted him the coveted military title of "Adelantado".Alvarado's close friendship with Cortés was broken in the same year; Alvarado had promised Cortés that he would marry Cecilia Vázquez, Cortes' cousin.