Her 2008 opera Criseyde is based on Geoffrey Chaucer's Troilus and Criseyde, and is sung in Middle English.
In the Roman, the daughter of Calchas is called Briseis, but she is better known under a different name, becoming Criseida in Boccaccio's il Filostrato, Criseyde in Chaucer, Cresseid in Robert Henryson's The Testament of Cresseid and ultimately Cressida in Shakespeare's Troilus and Cressida.