In the 1980s , the club had one of the best teams in Spain and Europe ( known as La Quinta del Buitre ) . They had won two UEFA Cups , five Spanish championships in a row , one Spanish cup and three Spanish Super Cups . In the 1980s , the club had one of the best teams ( known as La Quinta del Buitre ) in Spain and Europe , winning two UEFA Cups , five consecutive Spanish championships , one Spanish Cup and three Spanish Super Cups .