Sanctio
Sanctio a place in the Agri Decumates, in the south-west of Germany, was situated on the banks of the Rhine, but is mentioned only by Ammianus Marcellinus (21.3), and in such a manner that it is not easy to identify its site; it is possible, however, that the modern Seckingen may correspond with it.
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.