Zij is getrouwd met Alfred Duff 1st Viscount Norwich of Aldwick Cooper, 1st Viscount Norwich, GCMG, DSO, PC.
Zij zijn getrouwd op 2 juni 1919 te London, England, zij was toen 26 jaar oud.
Spouse: Alfred Duff Cooper, 1st Viscount Norwich, GCMG, DSO, PC
Diana Olivia Winifred Maud Cooper (born Manners)<br>Gender: Female<br>Birth: Aug 29 1892 - Belvoir Castle, England, United Kingdom<br>Marriage: Spouse: Alfred Duff Cooper, 1st Viscount Norwich, GCMG, DSO, PC - June 2 1919 - London, England<br>Death: June 16 1986 - London, Greater London, England, United Kingdom<br>Father: <br>Mother: Marion Margaret Violet Manners (born Lindsay), Duchess of Rutland<br>Adoptive father: Henry John Brinsley Manners, 8th Duke of Rutland<br>Husband: Alfred Duff Cooper, 1st Viscount Norwich, GCMG, DSO, PC<br>Child: John Julius Cooper, 2nd Viscount Norwich, CVO
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