 In February 2020 she created the title role in the world premiere of "Eurydice", written by Matthew Aucoin with a libretto by Sarah Ruhl, at the Los Angeles Opera.De Niese (called Danni by her friends and colleagues) married Gus Christie, grandson of John Christie and chairman of Glyndebourne Festival Opera, on 19 December 2009 in St Bartholomew-the-Great, London.Since her marriage she has lived at Glyndebourne in Sussex, England.