Question: Who is the paternal grandfather of Charles D'Artois?
Sentence (from "Robert, King of Naples"): Robert of Anjou , known as Robert the Wise (1276 – 20 January 1343), was King of Naples, titular King of Jerusalem and Count of Provence and Forcalquier from 1309 to 1343, the central figure of Italian politics of his time.
Relevant evidence: No