But Dagobert , now the semi-autonomous king of Austrasia , negotiated its return in 626 .
At the same time , Clothar made territorial changes by assigning the region of Reims to Neustria .
Dagobert , now the semi-autonomous king of Austrasia , negotiated its return in 626 .
At the same time , Clothar made territorial changes by assigning the region of Reims to Neustria .