(adjective) : Hēraclēus or -clĭus, a, um * Of or belonging to Heraclea (in Lydia), Heraclean: lapis, also called Lydius,Plin. 33, 8, 43, § 126; of the magnet, id. 36, 16, 25, § 127.
Charlton T. Lewis, Charles Short, A Latin Dictionary
Lewis Short
(adjective) : Hĕrāclēus or -clĭus, a, um * Of or belonging to Hercules; v. Hercules, II. D.
Charlton T. Lewis, Charles Short, A Latin Dictionary
PIR
Male Personal name Confirmed occurences in the Roman Empire:
Heracleus (Masc, eques), ref: PIR H 0086 | PIR ID6849