Culture: Monimia is an orphan in the play The Orphan or The Unhappy Marriage is a domestic tragedy, written by Thomas Otway in 1680. She is adopted by Acasto, who encourages his sons Castalio and Polydore to study art and politics, and avoid the company of women. Both Castalio and Polydore are in love with Monimia. Castalio, being the first-born twin, claims to have the right to woo her first and secretly contracts himself to Monimia in marriage. Polydore overhears and replaces Castalio on the wedding night. When everything is discovered and explained the next day, Polydore provokes Castalio into a duel and runs into his brother's sword on purpose, after which Monimia takes a fatal draught of poison and Castalio stabs himself.