[5] He retained the ducal title as "duke of Worms",[5] received the Kaiserpfalz of Lautern and seized large estates of Wissembourg (Weißenburg) Abbey in compensation.

Upon the death of Duke Henry II of Bavaria in 995, Otto again received the Duchy of Carinthia[a] and the March of Verona.

Nevertheless, he was forced to cede his Rhenish possessions to his long-time rival Bishop Burchard of Worms.

Otto died two years later, he was succeeded as Carinthian duke by his son, Conrad.

Otto married Judith (died 991),[7] probably a granddaughter of Duke Arnulf the Bad of Bavaria.