Saint Delia (Cordelia, Cordula) (383)

Saint Cordula was one of the companions of Saint Ursula who were martyred by the Huns at Cologne. Saint Cordula, at first, hid herself in fright, but later repented. On the next day she too suffered martyrdom. Her feast is celebrated on the day following the feast of her companions.

Reliquary of the Head of Saint Cordula (source)