On 25 January 1870, she married the Hon. Lionel Arthur Tollemache, son of John Tollemache, 1st Baron Tollemache[5] and Georgiana Louisa Best. They spent much of their married life enjoying long stays in luxury hotels in Europe, such as the Hôtel d'Angleterre in Biarritz, France, and the Hôtel Sonnenberg, Engelberg, Switzerland.[6]
In 1890, she published Engelberg, and Other Verses. In 1891, she published a translation of Jonquille, or the Swiss Smuggler from French, and co-wrote Safe Studies alongside her husband.[10]
She taught herself Russian when she was in her seventies, with her obituary in recording that "the bent of her exceptional mind was shown by her mastery of the difficult Russian language, which she acquired when she was already a septuagenarian."[8] In 1913, she published a translation of Russian Sketches, Chiefly of Peasant Life.[11]
^Chapman, Alice, ed. (22 October 2021). "Tollemache, Beatrix L. (F)". Digital Victorian Periodical Poetry Project, University of Victoria. Retrieved 8 January 2025.
^Lermontov, Mikhail Urevich; Leescov, N. C.; Grigorovich, D. V. (Dmitrii Vasilevich); Nekrasov, Nikolai Alekseevich (1913). Russian sketches, chiefly of peasant life. Translated by Tollemache, Beatrix Lucia Catherine Egerton. London: Smith, Elder.