' Constantine burns accusations against Christians and kiss the wounds of the martyrs' by Carlo Mannoni (17th century)in the octogonal chamber of the Lateran Baptistery (Baptist鑢e du Latran; Baptisterium des Lateran; Battistero di san Giovanni in Fonte al Laterano) which stands somewhat apart from the Archbasilica of Saint John Lateran. (basilique Saint-Jean de Latran; Lateranbasilika). This baptistery; the oldest in the world; founded by Pope Sixtus III in 440; was for many generations the only baptistery in Rome.Rome; Italy (2020)