Autolycus was a figure in Greek mythology, the son of Hermes and Chione (or, in some accounts, Deione) and the maternal grandfather of Odysseus. Renowned as a master thief and perjurer, he received his craft from Hermes in exchange for sacrifices. He was the father of Anticleia and host of the hunt on Mount Parnassus where the young Odysseus received the scar by which Eurycleia later recognized him.
Adapted from Wikipedia, "Autolycus (son of Hermes)" · CC BY-SA 4.0
I.The master-thief
Homer presents Autolycus as excelling all men in thievery and in oaths, a skill Hermes granted because Autolycus burned acceptable thigh-pieces to the god. In the Iliad, Diomedes wears a cap that passed through Autolycus' thefts and guest-friendship down to the Argive line.
His daughter Anticleia married Laertes and bore Odysseus; his daughter Polymede bore Jason to Aeson. The hero's cunning is often traced to this grandfather, and Hyginus links it also to the tradition that Sisyphus seduced Anticleia before the marriage.
II.The boar hunt
When Odysseus visited Autolycus on Parnassus with his mother's brothers, a boar gored the boy above the knee. The long scar remained, and when Eurycleia washed the disguised beggar's feet in Ithaca she knew her master at once.