Dagobert III succeeds his father King Childebert III as King of the Franks.

Year 711 (DCCXI) was a common year starting on Thursday of the Julian calendar. The denomination 711 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Dagobert III was Merovingian king of the Franks (711–715).

Childebert III, called the Just, was the son of Theuderic III and Chrothildis and sole king of the Franks (694–711). He was seemingly but a puppet of the mayor of the palace, Pepin of Heristal, though his placita show him making judicial decisions of his own will, even against the Arnulfing clan. His nickname has no comprehensible justification except possibly as a result of these judgements, but the Liber Historiae Francorum calls him a "famous man" and "the glorious lord of good memory, Childebert, the just king."

The Franks, Germanic peoples that invaded the Western Roman Empire in the 5th century, were first led by individuals called dukes and reguli. The earliest group of Franks that rose to prominence was the Salian Merovingians, who conquered most of Roman Gaul, as well as the Gaulish territory of the Visigothic Kingdom, following the Battle of Vouillé in 507 AD.