Eva Maria Evdokimova-Gregori (December 1, 1948 – April 3, 2009) was an American Prima Ballerina Assoluta with the Royal Danish, Berlin Opera Ballets, English National Ballet and guest artist with virtually every major ballet company worldwide. Eva Maria Evdokimova-Gregori (December 1, 1948 – April 3, 2009) was an American Prima Ballerina Assoluta with the Royal Danish, Berlin Opera Ballets, English National Ballet and guest artist with virtually every major ballet company worldwide.