Latinus (Greek Latînos) is king of the Latins in Roman myth — typically son of Faunus and Marica, husband of Amata, and father of Lavinia, whom he gives to Aeneas. He must not be confused with the Greek Latinus, son of Odysseus and Circe (or related Odyssean strands) in Hesiod and Hyginus.
Adapted from Wikipedia, "Latinus" · CC BY-SA 4.0
I.Roman king of Latium
In Virgil's Aeneid and related Roman narrative, Latinus rules Old Latium, hosts the exiled Trojans, and offers them settlement. Oracles and omens bar a native marriage for Lavinia; Amata prefers Turnus of the Rutuli, but Latinus and the gods insist on Aeneas. Turnus' war ends with his death; Ascanius later founds Alba Longa on the path toward Romulus and Remus.
Parentage varies within the Italian strand: Faunus and Marica are common; Dionysius of Halicarnassus reports a version in which he is a son of Heracles who only passes for Faunus' son. Ovid's Metamorphoses likewise names him Faunus' son when Aeneas wins Lavinia after war with Turnus.
II.Greek homonym — keep distinct
Hesiod's Theogony makes a Latinus son of Odysseus and Circe, ruling the Tyrrhenians with Agrius and Telegonus. Hyginus has Latinus as son of Circe and Telemachus; Apollodorus gives Odysseus and Calypso a Latinus. These Odyssean figures share the name but are irreconcilable with the Laurentine king who receives Aeneas. This atlas node is the Italian king alone.