Dagobert I was a king of the Franks who ruled from 629 to 639 AD. He was a member of the Merovingian dynasty and is known for his efforts to strengthen the Frankish kingdom. Dagobert moved the royal court to Paris, which became an important center of power during his reign. Under Dagobert's rule, the Frankish kingdom experienced a period of relative stability and prosperity. He was also known for his support of the Christian church, promoting the construction of churches and monasteries. His reign is often seen as a high point in the early medieval history of the Franks.