
Her mother is Candida Mary Sibyl "Candy" Leslie (née Weld) of Clan Fraser of Lovat, whose maternal great-grandfather was Simon Fraser, 13th Lord Lovat and a descendant of King Charles II.

Her father, Sebastian Arbuthnot-Leslie, is the Chieftain of the Aberdeenshire branch of the Scottish Clan Leslie.

Leslie was born in Aberdeen, Scotland, and raised at Lickleyhead Castle in Aberdeenshire, her family's 15th-century ancestral seat, where she lived until the age of 10. She is known for her roles as Gwen Dawson in the ITV drama series Downton Abbey and Ygritte in the HBO fantasy series Game of Thrones, as well as playing Maia Rindell in three seasons of the CBS All Access legal and political drama The Good Fight and starring as Clare Abshire in HBO's The Time Traveler's Wife.

Rose Eleanor Arbuthnot-Leslie (born 9 February 1987) is a Scottish actress.
