All official emperors except Julian were christian, but what about usurpers?
Philostorgius calls Western Roman emperor-usurper Eugenius pagan (XI, 2). Are there other sources about his belief?
Was Procopius, nephew of Julian, pagan? It seems that сynic Heraclius (he was old friend of Julian, that`s why I think he was pagan) was one of his pals (Eunapius apud Exc. De sent. Mai. P.267).