original_query: Who was Dagobert II and what was his role in the Merovingian dynasty?
query: Who was Dagobert II and what was his role in the Merovingian dynasty?
answer: Dagobert II was a Merovingian king of the Franks in Austrasia from 675 or 676 until his death in 679.  His reign is obscure, but he's known for his war with Neustria, a peace treaty with the Lombards, reintroducing gold coinage, and ultimately being assassinated.