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She was born Marem-Ides Leventon (Russian name Adelaida Yakovlevna Leventon) in Yalta, Crimea, Russian Empire. Her stage name Alla Nazimova was a combination of Alla (a diminutive of Adelaida) and the surname of Nadezhda Nazimova, the heroine of the Russian novel Children of the Streets. She was widely known as just Nazimova, and also went under the name Alia Nasimoff. She was the youngest of three children of Jewish parents Yakov Abramovich Leventon, a pharmacist, and Sofia (Sara) Lvovna Horowitz, who moved to Yalta in 1870 from Kishinev.

From 1917 to 1922, Nazimova wielded considerable influence and power in Hollywood.  Nazimova helped start the careers of both of Rudolph Valentino's wives, Jean Acker and Natacha Rambova. Although she was involved in an affair with Acker, it is debated as to whether her connection with Rambova ever developed into a sexual affair. Nevertheless, there were rumors that Nazimova and Rambova were involved in a lesbian affair (they are discussed at length in Dark Lover, Emily Leider's biography of Rudolph Valentino) but those rumors have never been definitely confirmed. She was very impressed by Rambova's skills as an art director, and Rambova designed the innovative sets for Nazimova's film productions of Camille and Salome.  Of those Nazimova is confirmed to have been involved with romantically, the list includes actress Eva Le Gallienne, director Dorothy Arzner, writer Mercedes de Acosta, and Oscar Wilde's niece, Dolly Wilde. Bridget Bate Tichenor, a Magic Realist artist and Surrealist painter, was also rumored to be one of Nazimova's favored lovers in Hollywood during the World War II years of 1940 to 1942. The two had been introduced by the poet and art collector Edward James, and according to Tichenor, their intimate relationship angered Nazimova's longtime companion, Glesca Marshall. However, the fact that Tichenor was pregnant most of 1940, giving birth to her son on Dec. 21, 1940, along with the 40-year age gap between the two women, casts some doubt on this rumor.  It is believed that Nazimova coined the phrase "sewing circle" as code to refer to lesbian or bisexual actresses of her day who concealed their true sexuality.  Nazimova lived with Glesca Marshall from 1929 until her death in 1945.
Alla Nazimova