son of Sthenelus and grandson of Perseus , a king of Mycenae , who , at the command of Juno , imposed upon Hercules his famous twelve labors , Cic.Tusc. 2, 8, 20; Ov.H. 9, 7; 45; id.M. 9, 203; 274; Hyg.Fab. 30; acc. Eurysthea, Verg.G. 3, 4.— Hence, Eurysthēus , a, um, adj., Eurysthean , Stat.Th. 4, 304.