Upon Theodo's death in 716, the divided duchy was plunged into civil war and all the brothers save Grimoald were dead by 719. It is not certain if the division of the duchy was territorial or a powersharing scheme, but if the former, it seems most probable that Grimoald's capital was either Freising, which he later favoured as a diocesan seat, or Salzburg, which he later treated as a capital of sorts (Vita Corbiniani).