A local legend found in 15th-century breviaries calls St. Exuperius an immediate disciple of Pope Clement I (88 to 99 CE), and the first Bishop of Bayeux.

[1] Some successors of St. Exuperius were honored as saints: Odo of Bayeux (1050–97), brother of William the Conqueror, built the cathedral and was present at the Battle of Hastings.

Cardinal Agostino Trivulzio (1531–48), papal legate in the Roman Campagna, was trapped in the Castel Sant'Angelo during the siege and pillage of Rome by the Imperial forces led by the Constable de Bourbon.

[3] In 1061 a council was again summoned by Duke William, who commanded the attendance of both clergy and laity (bishops, abbots, political and military leaders).

[9] In 1641 Saint Jean Eudes founded the Congregation of Notre Dame de Charité du Refuge, devoted to the protection of reformed prostitutes.

Bishop François II de Nesmond authorized the establishment of the Congregation of the Mission of Saint-Lazare in the diocese of Bayeux in 1682.