Emir of Andalus was not used by Alfonso VI because he was the King of Castile, León, and Galicia from 1072 to 1109, and Emperor of All the Spains from 1077 until his death. He expanded his territories significantly and was known as "Alfonso the Brave" for his military prowess and successful conquests.
The Conquering King: Test Your Knowledge of Alfonso VI of León and Castile