Deir Semaan {Seman) was originally a Greek agricultural settlement called Telanissos. At the beginning of the fifth century AD site developed into a monastic complex. After the death of St. Simeon the new basilica was built and the site became a pilgrimaqge center.
Sources:
- Howard Crosby Butler: Early Churches in Syria. Fourth to Seventh Centuries. Princeton University Press, Princeton 1929, pp. 105–109
- https://www.cometosyria.com/en/pages/St.+Simeon+Church+Syria/41/38