Eunuchus (The Eunuch) is a comedy written by the 2nd century BC Roman playwright Terence featuring a complex plot of familial misunderstanding. It was Terence's most successful play during his lifetime. Suetonius notes how the play was staged twice in a single day and won Terence 8,000 sesterces. The play is a loose translation of one written by Menander in Greek.

References:
https://en.wikipedia.org/wiki/Heauton_Timorumenos Terence. (1976). The Comedies (B. Radice, Trans.). Penguin Classics.