In Greek mythology, Chromius (Ancient Greek Χρόμιος) is a Pylian warrior whom Nestor arrays beside Pelagon, Alastor, Haemon, and Bias. Odyssey tradition also names a Chromius among Neleus and Chloris' sons — often taken as the same Neleid prince who fights under Nestor at Troy.
Adapted from Wikipedia, "Chromius" · CC BY-SA 4.0
I.Nestor's Pylian comrade
Homer (Iliad 4.295) has Nestor place Chromius among the Pylian captains. The Odyssey (11.286) lists Chromius among the sons of Neleus and Chloris with Nestor and Periclymenus; Wikipedia treats that Neleid prince and the Iliadic Pylian as linked entries on the same Chromius page.
Other Chromii on that page — Taphian son of Pterelaus, Priamid slain by Diomedes, Mysian Chromis, Lycian slain by Odysseus, and further Trojan/Achaean casualties — are distinct figures.
II.Homonym care
The atlas id chromius-pylian is the Pylian/Neleid alone. Do not merge with chromis-mysian, chromius-priamid, chromius-lycian, or chromius-trojan.