Demetrius
4. A son of Ariarathes V., king of Cappadocia, commanded the forces sent by his father in 154 B. C. to support Attalus in his war against Prusias. (Plb. 33.10.)
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.