proper noun/ø.ʁis.te/
Eurystheus (a Mycenaean king of Tiryns (or, according to some authors, of Argos), in Argolis, son of Sthenelus and grandson of Perseus, who imposed the twelve labours on Heracles)
From Latin Eurystheus, from Ancient Greek Εὐρυσθεύς (Eurustheús).