Child(ren):
SUPPO [II] . The primary source which confirms his parentage has not yet been identified. He succeeded his father as SUPPO II Duke of Spoleto. m ---. The name of the Duke Suppo's wife has not yet been identified.
Bron: http://fmg.ac/Projects/MedLands/CENTRAL%20ITALY.htm#SuppoIdied824
Suppo II was a member of the Supponid family and Engelberga, the wife of Louis II may have been his sister. He was Count of Parma, Asti, and Turin. Along with his cousin, Suppo III, he was the chief lay magnate in Italy during Louis's reign.
His father was Adelchis of Spoleto and his mother is unknown. He himself had four sons: Adelchis, Arding, Boso, and Wifred. He also left a daughter, Bertila, who married Berengar I of Italy.
Bron: http://en.wikipedia.org
http://fmg.ac/Projects/MedLands/CENTRAL%20ITALY.htm#SuppoIdied824