Frédégonde

  General Notes:

Said to be ruthlessly murderous and sadistically cruel, Fredegund perhaps has few rivals in monstrousness. And although she did not live to see it, her son's execution of Brunhilda bore the mark of Fredegund's hatred: Clothar II had the old queen, now in her sixties, stretched in agony upon the rack for three entire days, then watched her meet her death chained between four horses that were goaded to the four points of the compass, tearing her body asunder.

  Research Notes:

My information and source can be found at Foundation for Medieval Genealogy

Frédégonde married Chilperic I , King of Soissons, son of Clotaire I , King of The Franks and Aregund. (Chilperic I , King of Soissons was born in 539 and died in Sep 584 near Chelles, Neustria.) The cause of his death was Stabbed to death.