Ancestry.com+ History of the Franks by Gregory of Tours
Chroma of Burgundy is the mother of Munderic. St. Clothilde is his stepmother. Ste. Clothilde was the mother of the sons of King Clovis i.
Gregory of Tours
He was persuaded by Clovis I to kill his old lame father in order to get his riches. Then Clovis had Cloderic killed and took all of his father's lands and possessions. It seems that Clovis also took Saint Clothilde as his wife.