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
Rambert Dance Company a number of Rambert's former colleagues joined the Ballet Rambert in its formative years, including Alicia Markova and Anton Dolin, who would later become the first stars of Dame Ninette de Valois' Royal Ballet. A number of internationally renowned dancers and choreographers made their early appearances with the Ballet Rambert, including Frederick Ashton, Antony Tudor, Agnes de Mille, Andrée Howard, Pearl Argyle, Walter Gore and Peggy van Praagh. During the 1970s the Ballet Rambert also presented shows, first on stage and later via BBC television to engage the interest of a younger audience, using the anagrammatic name Bertram Batell's Side