In Greek mythology, Bucolion (Ancient Greek Βουκολίων) is the eldest but illegitimate son of Trojan king Laomedon. While shepherding he lies with the fountain-nymph Abarbarea (Apollodorus names the nymph Calybe as his mother) and begets the twin warriors Aesepus and Pedasus, whom Euryalus slays in Iliad Book 6. Distinct from Arcadian Bucolions and from Bucolus the Athenian.
Adapted from Wikipedia, "Bucolion" · CC BY-SA 4.0
I.Laomedon's eldest bastard
Homer (Iliad 6.21–28) makes Bucolion Laomedon's eldest-born though of an unwed mother: shepherding his flocks he lay with the naiad Abarbarea, who bore twin sons Aesepus and Pedasus. Euryalus kills both twins early in the poem. Apollodorus (3.12.3) instead names Calybe as the nymph mother of Bucolion himself — a prose variant beside Homer's Abarbarea liaison (topic bucolion-mother).
Tzetzes can make Bucolion and Abarbarea parents of Euphorbus, against the usual Panthous–Phrontis stemma. Keep this Trojan shepherd-prince apart from Lycaon's Arcadian son and from bucolus-athenian.
II.Homonym care
The atlas id bucolion-trojan is Laomedon's Trojan son alone. Distinct from Arcadian Bucolion (Lycaonid or Holaeas' heir) and from Bucolus father of the Athenian Sphelus.