Question: When did Robert I, Count Of Dreux's father die?
Sentence (from "Thuringbert, Count of Hesbaye"): Thuringbert (735–770), Count of Hesbaye and Count of Wormsgau, son of Robert I, Count of Hesbaye, and Williswinda.
Thuringbert and his wife (name unknown) had one child:
Relevant evidence: No