Aleppo Citadel lLocated on a naturally formed hill at the center of the old city. The Seleucids constructed fortifications at the site.
Sources:
- Getzel M. Cohen, The Hellenistic Settlements in Syria, the Red Sea Basin, and North Africa, University of California Pres 2006, pp. 153-155
- Trevor Bryce, Ancient Syria: A Three Thousand Year History, OUP Oxford 2014, p. 111