abstract:Saint Constantius () is venerated as a member of the legendary Theban Legion. Similar to the cults of Saint Chiaffredo at Crissolo, Saint Bessus at Val Soana, Saint Tegulus at Ivrea, Saint Magnus at Castelmagno, and Saint Dalmatius at Borgo San Dalmazzo, the cult of Saint Constantius was linked with that of the Theban Legion to lend antiquity to a local saint about whom nothing was really known.