Odilia of Cologne was a 5th-century Christian martyr born in Great Britain. As the daughter of a ruler, she reportedly traveled through Germany alongside a group of young women, including Saint Ursula. Whether they were on a pilgrimage to Rome or seeking a new place to practice their faith, the group was intercepted at the gates of Cologne by barbarians. This encounter resulted in her martyrdom, an event that established her place in Christian tradition.