“The council of Constance (1414-1418) ended the schism. The three popes were all deposed. The famous eighteenth century historian Edward Gibbon described the case against one of them, John XXIII: ‘The most scandalous charges were suppressed; the vicar of Christ was only accused of piracy, murder, rape, sodomy and incest;…’”

— H.G. Koeningsberger,
Medieval Europe 400-1500, page 326.