Islamic Studies
Caliphate & Rulers: From the Rightly Guided Caliphs to the Ottoman Caliphate
Which Umayyad Caliph conquered Spain (Andalus)?
Explanation
Al-Waleed bin Abdul Malik (86–96 AH) oversaw the conquest of Spain (Andalus) under the command of Tariq bin Ziyad.
Reference: Islamic Studies - Caliphate & Rulers
, Page 7