thumb|200px|Arms of Carey: Argent, on a bend sable three roses [[Tincture (heraldry)|of the field]]

Catherine Carey, after her marriage Catherine Knollys and later known as both Lady Knollys and Dame Catherine Knollys ( – 15 January 1569), was chief Lady of the Bedchamber to Queen Elizabeth I, who was her first cousin. She was the daughter of Mary Boleyn, sister to queen consort Anne Boleyn.

Biography

Catherine Carey was born in 1524, the daughter of William Carey of Aldenham in Hertfordshire, Gentleman of the Privy Chamber and Esquire of the Body to Henry VIII, and his wife Mary Boleyn, who had once been a mistress of the king. Catherine was thus Elizabeth I's maternal first cousin. Some historians believe that Catherine was an illegitimate child of Henry VIII, which would make her also Elizabeth I's paternal half-sister through their shared father, Henry VIII. However, Henry VIII never acknowledged Catherine as his daughter. Other historians suggest that this was a rumour spread by supporters of Katherine of Aragon.

Catherine was said to be a witness to the execution of her aunt, Anne Boleyn, in 1536; however, claims that she had stayed overnight to entertain and distract her aunt Anne in the Tower of London before the latter's execution have been dismissed.

Catherine went on to be appointed Maid of Honour to both Anne of Cleves, in November 1539, and Katherine Howard, who were the fourth and fifth wives of Henry VIII.

On 26 April 1540 she married Sir Francis Knollys. Her husband was knighted in 1547 and was named a Knight of the Garter in 1593. He was also Treasurer of the Royal Household. From the time of her marriage, Catherine became known as Mistress Knollys, and from 1547 as Lady Knollys. When not in London, the couple lived at Reading in Berkshire and Rotherfield Greys in Oxfordshire.

As Catherine and her husband were staunch Protestants, they fled to Germany in spring 1556 during the reign of Queen Mary I.

Catherine was buried the following April in St Edmund's Chapel in Westminster Abbey, with the grieving Queen herself paying £640 2s. 11d. for the interment. There is a small commemorative plaque in the abbey, although her chief monument is at Rotherfield Greys in Oxfordshire.

Catherine's epitaph reads:

left|thumb|150px|Catherine's mother, Mary Boleyn, was the sister of [[Anne Boleyn and a mistress of King Henry VIII of England]]

Issue

Sir Francis and Lady Knollys produced sixteen children: He was married first to Dorothy Bray, who was 20 years his senior; and secondly to Elizabeth Howard, daughter of Thomas Howard, 1st Earl of Suffolk and his second wife Catherine Knyvett.

  • Edward Knollys (1546–1580). He was a member of Parliament.
  • Sir Robert Knollys (1547–1626). Member of Parliament representing Reading, Berkshire (1572–1589), Brecknockshire (1589–1604), Abingdon, Oxfordshire (1604, 1624–1625) and finally Berkshire (1626). He married Catherine Vaughan, daughter of Sir Rowland Vaughan, of Porthamel.
  • Richard Knollys (1548 – 21 August 1596). Member of Parliament representing first Wallingford (1584) and then Northampton (1588). Married Joan Heigham, daughter of John Heigham, of Gifford's Hall, Wickhambrook, Suffolk.
  • Elizabeth Knollys (15 June 1549 – c. 1605). Lady Elizabeth married Sir Thomas Leighton of Feckenham, Worcestershire, son of John Leighton of Watlesburgh and Joyce Sutton, in 1578. Her husband served as Governor of Jersey and Guernsey.
  • Maud Knollys (1548 – ?). Died young.
  • Sir Thomas Knollys (died 1596). Known for service in the Eighty Years' War (1568–1648). Governor of Ostend in 1586. Married Ottilia de Merode, daughter of Jean IX de Merode, Sire de Petershem and Margareta van Pallant.
  • Sir Francis Knollys "the Younger" (c. 1552 – 1648). Member of Parliament representing first Oxford (1572–1588) and then Berkshire (1597, 1625). Married Lettice Barrett, daughter of John Barrett, of Hanham. Father-in-law of John Hampden.
  • Anne Knollys (19 July 1555 – 30 August 1608). Married Thomas West, 2nd Baron De La Warr. Mother to Thomas West, 3rd Baron De La Warr, after whom the state of Delaware is named.
  • Catherine Knollys (21 October 1559 – 20 December 1620). Married first Gerald FitzGerald, Baron Offaly (son of Gerald FitzGerald, 11th Earl of Kildare and Mabel Browne) and secondly Sir Phillip Butler, of Watton Woodhall. She was the mother of Lettice Digby, 1st Baroness Offaly.
  • Cecily Knollys (c. 1560 – ?). No known descendants.
  • Margaret Knollys. No known descendants.
  • Dudley Knollys (9 May 1562 – June 1562)