Ferri 1963 births Living people La Scala Theatre Ballet dancers People educated at the Royal Ballet School Prix de Lausanne winners Prix Benois de la Danse winners Principal dancers of The Royal Ballet American Ballet Theatre principal dancers Prima ballerina assolutas Prix Benois de la Danse jurors Laurence Olivier Award winners Italian ballerinas Naturalized citizens of the United States 20th-century Italian ballet dancers Knights of the Order of Merit of the Italian Republic