 However, once Charles had established a powerful basis by 737, he exiled Eucherius with the help of a man called Chrodobert to the monastery of St Trond.Charles took further military action in the same year to fully assert his authority, and installed his sons Pippin and Remigius as magnates.This was followed by the installation of political supporters from Bavaria and local supporters like Theuderic of Autun and Adalhard of Chalon.