Marie Rambert and the last changed his name to Warszawski. She changed her name to Myriam Ramberg, and finally left it in the French form "Marie Rambert". In later years she was known to friends and dancers as Mim. Her father, Yakov Ramberg (1855–1928), born in Vištytis, a small town in Suwałki Governorate (nowadays in Lithuania), was a learned merchant and Hebrew publisher and lexicographer, and a Zionist. Her mother, Eiga Ramberg née Lap, born in the town of Suchowola (nowadays in north-east Poland), daughter of Rabbi Elhanan Tzvi Lap, was a community worker. Rambert was the fourth of seven children. The
Betty Oliphant Karsavina, Laurent Novikoff and Marie Rambert. By the age of 17, she had opened her own school. She moved to Canada in 1947. In 1951, she became ballet mistress for the National Ballet of Canada at the request of Celia Franca, the company's director. She and Franca founded the National Ballet School of Canada in 1959. Alumni include Frank Augustyn, Rex Harrington, Karen Kain, James Kudelka and Veronica Tennant. Her training was based on the Cecchetti method of classical dance. In 1959, she became associate artistic director for the National Ballet of Canada, but resigned in 1975 to devote herself