Immachilde married St. Sigebert III MEROVING King of Austrasia, son of Dagobert I "The Great" MEROVING King of the Neustrian Franks and Ragnetrud D' AUSTRASIE, in 633. (St. Sigebert III MEROVING King of Austrasia was born on 9 Oct 630 and died on 1 Feb 656.)