Bonosus of Sardica
Bonosus was a Bishop of Sardica in the latter part of the fourth century, who taught against the doctrine of the perpetual virginity of Mary. His followers were later labelled "Bonosians" and considered heretical. The council of Capua 391 condemned Bonosus and tried to excommunicate him, however Bonosus did not stop using his episcopal functions. The Bonosians would rebaptize converts After the condemnation of Bonosus he started his own sect.