Mary Jeune, Baroness St Helier

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The Right Honourable Mary Jeune, Baroness St Helier DBE
Lady St Helier in 1896
Born	Susan Elizabeth Mary Stewart-Mackenzie (1845-05-18)18 May 1845 Munich, Kingdom of Bavaria
Died	25 January 1931(1931-01-25) (aged 85) London, England
Spouses	John Constantine Stanley ​ ​ (m. 1871; died 1878)​ Francis Jeune, 1st Baron St Helier ​ ​ (m. 1881; died 1904)​
Children	3
Parent(s)	Keith Stewart-Mackenzie Hannah Hope-Vere

Susan Elizabeth Mary Jeune, Baroness St Helier, DBE (née Mackenzie, previously Stanley; 18 May 1845 – 25 January 1931) was a London County Council alderman and the wife of Francis Jeune, 1st Baron St Helier.