Theodo of Bavaria

He strengthened his duchy internally and externally and, according to the medieval chronicler Arbeo of Freising, he was a prince of great power whose fame extended beyond his borders.

He married Folchaid, of the Frankish (possibly Robertian as the daughter of Robert II) aristocracy in Austrasia, to build diplomatic ties there.

He intervened in Lombard affairs by harbouring the refugees Ansprand and Liutprand, whom he assisted militarily on his return to claim the Iron Crown.

He was the first to draw up plans for the Bavarian church, aiming both at a deeper cultivation of the countryside as well as greater independence from the Frankish Kingdom by a closer association with the Pope.

According to the Renaissance historians Ladislaus Sunthaym (c.1440–1512/13) and Johannes Aventinus (1477–1534), Theodo married Regintrud, possibly a daughter of King Dagobert I of Austrasia.

However, the Verbrüderungsbuch codex of St Peter's Abbey, Salzburg only mentions one Folchaid, probably a daughter of the Robertian count Theutacar in Wormsgau.

They had the following children: From another wife named Gleisnot of Friuli: Theodo was eventually succeeded by his four other sons, between whom he divided his duchy sometime before 715.