In Greek mythology, Clymenus (Ancient Greek Κλύμενος) is king of the Minyans at Orchomenus in Boeotia, son of Presbon or of the eponym Orchomenus. Mortally wounded at Poseidon's feast at Onchestus by Perieres, charioteer of Menoeceus, he charged his son Erginus to avenge him — the grievance that bound Thebes to Minyan tribute.
Adapted from Wikipedia, "Clymenus" · CC BY-SA 4.0
I.Death at Onchestus
Pausanias (9.37.1) has Orchomenus die childless and leave the kingdom to Clymenus son of Presbon son of Phrixus; Apollodorus (2.4.11) knows him as Minyan king when Perieres struck him with a stone in Poseidon's precinct at Onchestus. Carried home dying, he told Erginus to avenge him; Erginus then warred on Thebes and laid a hundred-cattle tribute for twenty years.
By Boudeia or Bouzyge he is father of Erginus, Stratius, Arrhon, Pyleus, Azeus, and daughters Eurydice and Axia. The atlas node is this Minyan king alone.
II.Homonym care
Wikipedia's Clymenus page lists many namesakes: a Calydonian son of Oeneus, an Arcadian incest king, a Pylian father of Eurydice (clymenus-pylos), a Dulichian suitor (clymenus-dulichium), a title of Hades, and others. Do not merge them with clymenus-orchomenus.