In Greek mythology, King Eurytus of Oschalia, Thessaly, was the father of Dryope and Iole. Autolycus stole his cattle.
Eurytus promised his daughter, Iole, to whoever could beat Dryope in an archery contest. Heracles won but Eurytus abandoned his promise. Heracles killed him, his sons and abducted Iole.
Alternative: Erytus