Caribert (also spelled Charibert and Heribert), Count of Laon, was the maternal grandfather of Charlemagne. He was the father of Charles's mother, Bertrada of Laon. Only his mother is known from contemporary records. In 721, Caribert signed, with his mother Bertrada of Prüm (also known as Bertha or Beltrada of the Merovingians), the foundation act of the Abbey of Prüm. The same year, also with his mother, he made a donation to the Abbey of Echternach. By 744, his daughter Bertrada of Laon (by Bertrada of Cologne) had married Pepin the Short, mayor of the palace of Neustria and Burgundy and later king of the Franks. He died before 762, as stated in an act of his daughter and son-in-law.