Answer:

martel

AnswerCrossword Clue
MARTELCharles ..., 8th century king of the Franks.
MARTELCharles ..., grandfather of Charlemagne.
MARTELCharles, grandsire of Charlemagne.
MARTELThe Hammer
MARTELCharles ..., Frankish ruler
MARTELHammerlike weapon
MARTELConqueror of Burgundy