People Mary Grey English noblewoman (1545?–1578)20 April 1545 – 30 April 1578 Henry Grey, 1st Duke of Suffolk17 January 1517 – 23 February 1554Frances Grey, Duchess of Suffolk16 July 1517 – 30 November 1559 Mary Grey20 April 1545 – 30 April 1578 ParentsHenry Grey, 1st Duke of Suffolk17 January 1517 – 23 February 1554Frances Grey, Duchess of Suffolk16 July 1517 – 30 November 1559SiblingsLady Jane GreyOctober 1537 – 12 February 1554Katherine Grey25 August 1540 – 5 February 1568 From Wikipedia and Wikidata (public domain), updated daily.
