Question: Who is the paternal grandfather of Drogo (Mayor Of The Palace)?
Sentence (from "Carloman (mayor of the palace)"): Carloman (between 706 and 716 – 17 August 754) was the eldest son of Charles Martel, "majordomo" or mayor of the palace and duke of the Franks, and his wife Chrotrud of Treves.
Relevant evidence: Yes