The French have occupied Sicily, and Hélène is held hostage by Montfort, the French governor, who has had her brother executed. She turns to the partisan Jean Procida and the rebellious patriot Henri in her bid for vengeance. Les Vêpres siciliennes is one of Verdi’s lesser-known mature operas, but was vital to his development as a composer. It was created for the Paris Opéra in 1855, providing Verdi with an opportunity to embrace the elaborate style and traditions of French grand opera. First seen at the Royal Opera House in 2013, this staging of Verdi's rarely-performed opera Les Vêpres siciliennes – directed by Stefan Herheim and conducted by The Royal Opera’s Music Director, Verdi specialist Sir Antonio Pappano – went on to win the prestigious Olivier Award for Best New Opera Production.