What important victory did one founder of the carolingians achieve? a. he convinced all europeans to convert to christianity. b. he won the title of first warrior king of france. c. he fought to make spain the most powerful country in europe. d. he defeated a muslim invasion from spain.

The correct answers are D) he defeated a Muslim invasion from Spain.

The important victory that the founder of the Carolingians achieved was that he defeated a Muslim invasion from Spain.  

In the Battle of Tours of October 732, Charles Martel defeated the Muslims and prevented the invasion in Spanish territories. So, yes, the important victory that the founder of the Carolingians achieved was that he defeated a Muslim invasion from Spain. The battle was held in the West-Central French region of Poitiers and Tours. Martel defeated the Emir of Cordova’s troops and one of the consequences of the victory was to prevent Muslims ideas and beliefs into French territories.