Mathilda-Marie Feliksovna Kschessinskaya (Polish: Matylda Maria Krzesińska, Russian: Матильда Феликсовна Кшесинская; 31 August [O.S. 19 August] 1872 – 6 December 1971 (also known as Her Serene Highness Princess Romanova-Krasinskaya from 1935) was a Russian ballerina from a family of Polish origin. Her father Feliks Krzesiński and her brother both danced in St. Petersburg. She eventually attained the highest rank, that of prima ballerina assoluta.