Although Martel never assumed the title of king, he divided Francia, like a king, between his sons Carloman and Pepin. The latter became the first of the Carolingians, the family of Charles Martel, to become king. Martel's grandson, Charlemagne, extended the Frankish realms to include much of the West. Charlemagne became the first Emperor since the fall of Rome. On the basis of his achievements, Martel laid the groundwork for the Carolingian Empire.