Elizabeth Wynne Fremantle (born 1959) (b. 1959) Parents John Fremantle, 5th Baron Cottesloe Elizabeth Ann Barker Children Edward St. Alban Duncan Smith Henry St. John Duncan Smith Rosanna Tatiana Duncan Smith Alicia Cecilia Duncan Smith Siblings Frances Ann Fremantle Thomas Fremantle, 6th Baron Cottesloe Partners Iain Duncan Smith