Antipope Constantine II (d 6 August 768) was an antipope in 767 and 768. During the last days of the Pope Paul I in June, his brother Toto of Nepi and a body of Tuscans placed him upon the See of Peter when he was still a layman. In spring 768 he was deposed and killed by Lombards, when prisoner in the monastery of San Saba.
hr:Konstantin II., protupapa id:Anti-Paus Konstantinus IIla:Constantinus II (antipapa) hu:II. Konstantin (ellenpápa)pt:Antipapa Constantino II ru:Константин II (антипапа) sv:Konstantin II (motpåve) uk:Костянтин (антипапа)