Tancred II d'Quenelles

Duke Tancred II has been a fine lord of Quenelles. His finest moment was the defeat of the Necromancer Heinrich Kemmler and the Chaos Champion Krell, who allied with the Skaven and attacked the abbey of La Maisontall. That was in 1513 (2491), and the Duke is now an old man, somewhat stooped and shrunken, but still showing his old vigour.

The Duke himself, however, now feels his mortality strongly and worries about the future of his dukedom. Duke Tancred had four sons. The eldest died defeating a Wight who had raised an army of Undead within Quenelles itself. The second died as a Knight Errant in the battle against Heinrich Kemmler. The third was a dissipated wastrel who drowned in a cask of wine three years ago. The Duke’s fourth son, Einhard, left on his Grail Quest some ten years ago and has not been heard of since. 89 90

Ten years is a long Grail Quest, but far from the longest on record. Tancred fears all his sons are dead, but he hopes the fourth could be a worthy successor. Either way, he wants to know, as he feels he must make definite arrangements for the future of the dukedom.

The Duke of Quenelles is the only Duke to use a lesser title with any frequency. He is also Earl of Cuileux, and out of respect for the brave knights of that land, he issues charters and decisions affecting that region over that title.

Source

 * Warhammer Fantasy RPG 2nd ED -- Knights of the Grail pg. 89 90