Theodbert(alsoTheodebert,Theudebert,Theotpert,andTheodo) (c.685 – c. 719) was theduke of Bavariain some capacity or other from 702 to his death. He was the eldest son of DukeTheodo of Bavariaand Folchaid. He was first associated with his father as duke in 702, ruling fromSalzburg.In 711, his younger brotherTheobaldwas co-ruling as well and his father was making plans for a fourfold division of the duchy on his death. Sometime before 715, the division was given, but whether territorial orcoregentis not known. If the former, the dioceses set up by Theodo probably corresponded to the duchies of his sons. In that scenario, Theodbert probably had his seat at Salzburg, as since 702.
His father did have him swear to always defendRupert of Salzburgwhen he transferred the government to Theodbert. Theodbert also provided military help toAnsprandandLiutprandin their reconquest of Italy in 712.
After Theodo's death, the four brothers warred with each other, but all were dead by 719 save Grimoald, who thereafter ruled alone until his own death. Theodbert had marriedRegintrudeand had a son and a daughter:Hugbert,the only grandson of Theodo II, who inherited the duchy united after Grimoald's death, and Guntrude, who married Liutprand.
