Chilperic II
In 716, the king of the Franks, Chilperic II, and Ragenfrid, the mayor of the palace of Neustria, invaded Austrasia to impose their will on the competing factions there: those of Theudoald and Plectrude, grandson (and designated heir) and widow respectively of Martel's father Pepin of Heristal, and those of Martel himself, newly escaped from Plectrude's Cologne prison and acclaimed mayor of the palace of Austrasia. Simultaneously Radbod, King of Frisia invaded Austrasia and allied with the king and the Neustrians.