The term "Moors" has also been used in Europe in a broader sense to refer to Muslims, especially those of Arab or African descent, whether living in Spain or North Africa. Moors are not a distinct or self-defined people. Medieval and early modern Europeans applied the name to the Berbers, North African Arabs, Muslim Iberians[2] and West Africans from Mali and Niger who had been absorbed into the Almoravid dynasty.[3] Scholars observed in 1911 that "The term 'Moors' has no real ethnological value."
I don't think those who were under the command of the Monarch of Spain or Portugal were muslim at all. They should have been Anglo Saxon Christians. Never the less , the term moor could mean someone of Arab ie Asain decent not necessarily someone 1/2 black