In Greek mythology, Clytius (Ancient Greek Κλύτιος) is a Trojan prince, son of King Laomedon and brother of Priam, Tithonus, Lampus, and Hicetaon. Homer seats him among the elders at the Scaean Gate; later tradition makes him father of Caletor and, by some accounts, of Pronoe mother of Polydamas.
Adapted from Wikipedia, "Clytius" · CC BY-SA 4.0
I.Elder at the Scaean Gate
Homer (Iliad 3.146–153) places Clytius with Priam, Panthous, Thymoetes, Lampus, Hicetaon, Ucalegon, and Antenor — old men of sweet speech who watch from the wall. Aeneas' vaunt (Iliad 20.236–240) counts him among Laomedon's sons beside Tithonus, Priam, and Hicetaon.
Later sources name children Caletor (Iliad 15.419), Procleia, and Pronoe/Pronome. The atlas node is this Laomedontid elder.
II.Homonym care
Wikipedia's Clytius page lists the Giant slain by Hecate (clytius-giant), the Oechalian Argonaut (clytius-oechalia), Penelope's suitors (clytius-same, clytius-zacynthus), the Achaean father of Dolops (clytius-achaean), and many more. Do not merge them with clytius-trojan.