Desiderius of Langres was a 4th-century bishop who served as the third prelate of Langres in Gaul. Born near Genoa, he was an active participant in several important ecclesiastical gatherings, including the Council of Sardica in 343 and the Council of Cologne in 346. He is remembered for his courageous attempt to intercede with the Vandals on behalf of his people, an action that ultimately led to his death during their invasions.
Life and death
During the barbarian invasions between 355 and 357, Desiderius sought to protect his flock by appealing to the Vandal king. Following the king's orders, he was executed by decapitation in 355. Tradition holds that after his death, his head returned to the city of Langres on its own, a phenomenon known as cephalophory.
Veneration
He is commemorated as a saint and martyr in the Catholic, Anglican, and Orthodox traditions. His feast day is observed on May 23. Desiderius is regarded as a patron of teachers and peasants, and he serves as a protector for several locations, including Langres, Assago, Castelnovo Scrivia, and Brignano Frascaté.