Pepin of Landen

Pepin I (also Peppin, Pipin, or Pippin) of Landen (c. 580 – 27 February 640), also called the Elder or the Old, was the Mayor of the Palace of Austrasia under the Merovingian king Dagobert I from 623 to 629. He was also the mayor for Sigebert III from 639 until his death.

Through the marriage of his daughter Begga to Ansegisel, a son of Arnulf of Metz, the clans of the Pippinids and the Arnulfings were united, giving rise to a family which would eventually rule the Franks as the Carolingians.

Pepin's father is named Carloman by the Chronicle of Fredegar, the chief source for his life. His byname comes from his probable birthplace: Landen, modern Belgium. However, according to Godefroid Kurth, it was only in the twelfth century that the chroniclers of Brabant began to associate him with that locality. He is sometimes called Pepin I and his other nicknames (Elder and Old) come from his position at the head of the family called the Pippinids after him.

He was lord of a great part of Brabant, and governor of Austrasia, when Theodebert II. king of that country was defeated by Theodoric II, king of Burgundy. In 613, several leading magnates of Austrasia and Burgundy abandoned Brunhilda, the great-grandmother and regent of their king, Sigebert II, and turned to Chlothar II of Neustria for support, promising not to rise in defense of the queen-regent and recognizing Chlothar as rightful regent and guardian of the young king. Chief among these leading men were Warnachar II, Rado, Arnulf, and Pepin. The latter two were described by Fredegar as the "two most powerful barons of Austrasia" and they made some agreement with Chlothar at Andernach. However, while Rado was confirmed as mayor in Austrasia and Warnachar in Burgundy, Pepin did not receive his reward until 623, when he was appointed mayor in Austrasia after Chlothar made his young son Dagobert king there. Arnulf, his lifelong friend, was appointed adviser to the new king alongside him.

...
Wikipedia