Her full name according to Claridge (1999), p. 10; and Mori (2011), p. 22. Biographies by De Lempicka-Foxhall & Phillips (1987), Néret (2000), Blondel, Brugger, and Gronberg (2004), and Bade (2006) also give her birth name as Tamara; some other sources say her birth name was Maria (e.g., Helena Reckitt, The Art of Feminism: Images that Shaped the Fight for Equality, 1857-2017, 2018, p. 84.