Question: Who is Bernard, Son Of Charles Martel's paternal grandmother?
Sentence (from "Bernard, son of Charles Martel"): Bernard or Bernhard de Saint Quentin (d'Herstal), Abby of von St. Quentin, Abbot of St. Quentin (c.720-787) was a son of Charles Martel by his mistress Ruodhaid.
Relevant evidence: Yes