Question: What nationality are both Grosvenor and Hugh d'Avranches, Earl of Chester?
Sentence (from "Richard d'Avranches, 2nd Earl of Chester"): Richard d'Avranches, 2nd Earl of Chester (1094 – 25 November 1120) was the son of Hugh, 1st Earl of Chester and Ermentrude of Clermont.
Relevant evidence: No