Dagobert I., king of the Franks, son of Clotaire II., reformed the laws of the Franks; was the last of the Merovingian kings who knew how to rule with a firm hand; the sovereign power as it passed from his hands was seized by the mayor of the palace; (d. 638).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Dago * Dagon