A Father of the Egyptian Desert
Simeon belongs to the broad company of the desert fathers of Egypt, monastics whose names entered the Church's calendar even where their individual lives were never written down. The Orthodox Church in America's daily synaxarion records his commemoration on April 5 but notes that no biographical information has been preserved. The same is true of his companions Theonas and Phorbinus, each remembered on the same day and described only by name and Egyptian origin.
What can be said with confidence is therefore limited: that he was an ascetic of Egypt, honored as a monastic saint, and kept in the Church's memory alongside Theonas and Phorbinus. Sources that place him in the fourth century associate him with the formative era of Egyptian monasticism, but no surviving account narrates his birth, his repose, a particular monastery, or his relics. The profile is kept short out of fidelity to the record rather than from neglect.