Mayors of the Palace
By 700 A.D., the Merovingian kings had lost control of the region inhabited by the Franks. Instead, power fell to a leader who was known as the Mayor of the Palace. In 732 A.D., Islam invaded Europe in an attempt to convert the Christians to the Islam faith.
They had already conquered much of Europe, including almost all of Spain. As the Muslims entered what is now modern day France, a Mayor of the Palace by the name of Charles Martel met them with his forces in the city of Tours.
Martel and his forces were able to beat back the Muslims, protecting the rest of Europe, and insuring that the religion practiced by the Europeans would remain Christianity.