Postumus
which signifies a person born after the death of his father, was originally a praenomen (Varr. L.L. 5.60, ed. Muller), but was also used as a cognomen, of which several instances occur in the persons mentioned below.
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. 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.