This is from bbc.co that dates this somewhere between 1890 and 1910!
She may be Marie Carola Franciska Roselyne Blennerhassett, probably better known as Marie Galway. This name comes from her second marriage. Her first marriage was to one Baron Raphael Erlanger. This is Marie Carola d'Erlanger's article in thepeerage: "Marie Carola Franciska Roselyne Blennerhassett1 F, #168882, b. 5 January 1876, d. 29 June 1963
Marie Carola Franciska Roselyne Blennerhassett was born on 5 January 1876. She married, firstly, Baron Raphael d'Erlanger on 28 November 1894. She married, secondly, Lt.-Col. Sir Henry Lionel Galway, son of Lt.-Gen. Sir Thomas Lionel John Gallwey, on 26 August 1913. She died on 29 June 1963 at age 87.
She was the daughter of Rt. Hon. Sir Rowland Blennerhassett, 4th Bt. and Countess Charlotte de Leyden. From 28 November 1894, her married name became d'Erlanger. From 26 August 1913, her married name became Galway. She was invested as a Commander, Order of the British Empire (C.B.E.) in 1926. She was invested as a Dame of Grace, Order of St. John of Jerusalem (D.G.St.J.)."