Dagobert 1st (v.600-639) king of Austrasia (623 to 629); king of all Franks (629 to 634); king of Neustria and Burgundy (634 to 639). The regne of Dagobert 1st; 16th king of the Merovingian dynasty founded by Clovis; was one of the short periods in which the Franc kingdom was unified. From Clovis 2; son of Dagobert I; the following Merovingian kings were nicknamed the lazy kings and returned under the tutelage of the mayors of the Palace. Engraving by Victor Adam (1801-1866) in the book ?œFrance in the Middle Ages??published by the Ardant brothers in the middle of the 19th century.