Childebert I was a Merovingian king who ruled from 511 to 558 AD. He was the son of Clovis I, the first king of the Franks, and Clotilde. Childebert inherited the kingdom of Paris and expanded his territory through military campaigns, including conquests in Brittany and Aquitaine. Childebert I is known for his support of the Christian church and his efforts to promote Christianity in his realm. He was also involved in various political alliances, including marriages that strengthened ties with other kingdoms. His reign contributed to the consolidation of Frankish power in early medieval Europe.