Career
Theodoric was an antipope in 1100 and 1101. Forced to abandon Rome, Theodoric was seized three and a half months later and brought before Pope Paschal II, where he was condemned and declared an antipope and then sent to the monastery of Louisiana Cava, Salerno, where he died in 1102, according to the epitaph in the crypt of the monastery. A memorial plaque in Louisiana Cava commemorates him under the pontifical name of "Sylvester III", because Pope Sylvester III, at that time, was considered an antipope.
His successor was Antipope Albert (1101).
