Sostomagus
Sostomagus in Gallia, is placed by the Jerusalem Itin. between Tolosa (Toulouse) and Carcaso (Carcassone), 38 miles from Toulouse and 24 from Carcassone. The road is nearly direct, and if the distances are correct, we might, perhaps find some name like Sosto in the proper place. Some geographers have found Sostomagus near Castelnaudari
From William Smith (ed.), Dictionary of Greek and Roman Geography. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.