There are no direct statements about when Charibert was born exactly, the only known fact being that he was "a few years younger" than his half-brother Dagobert.
[1] His father Clotaire evidently had a bigamous marriage (not then uncommon) and he was the offspring of the junior wife.
In the ensuing negotiations, Charibert, a minor, was represented by his uncle Brodulf, the brother of Queen Sichilde.
Charibert's realm included Toulouse, Cahors, Agen, Périgueux, and Saintes, to which he added his possessions in Gascony.
His fighting force subdued the resistance of the Basques, until the whole Novempopulania (became Duchy of Vasconia) was under his control.