Wiki information Kirdjun:

Man, Person

Saint Kirdjun was a robber converted to Christianity. He was a reformed robber and bandit. He died as a martyr in Alexandria and was buried at Banuar. His feast day is July 19. He is referenced in Les Martyrs d'Égypte by Hippolyte Delehaye.

Les Martyrs d'Égypte
Written Work, Published Work

Les Martyrs d'Égypte is a work by Hippolyte Delehaye, included in Analecta Bollandiana #40. It contains references to several saints, including: Abadiu of Antinoe Abāmūn of Tarnūt Kirdjun