Teodone degli Agilulfingi, joint Duke of Bavaria

1. TASSILO ([742]-11 Dec or 5 Jan after 794). m LIUTBERGA [Liutpirc] of the Lombards, daughter of DESIDERIUS King of the Lombards & his wife Ansa --- (-after 788). Duke Tassilo & his wife had four children:

a) THEODO (8 Oct? -after 788). The necrology of Walderdorff records the birth "VIII Id Oct" of "Theotoni filio Tassiloni ducis"[111]. The Salzburg Annals record that Tassilo baptised his son in Rome in 772, but do not name the son[112]. Named son of Tassilo in the Royal Frankish Annals, his father gave him as hostage to Charles I King of the Franks in 787[113]. His father appointed him as joint Duke of Bavaria in 777. He was tonsured with his father in 788104, and became a monk in cloister of St Maximin 788.

https://fmg.ac/Projects/MedLands/BAVARIA.htm#Odilo