Eurysthée

Eurysthée is masculine in French.

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).