| Honorific-Prefix: | His Grace |
| The Duke of St Albans | |
| Honorific-Suffix: | KG KB |
| Constituency Mp: | Bodmin |
| Parliament: | Great Britain |
| Alongside: | John Legh (1715–1722) |
| Term Start: | 1718 |
| Term End: | 1722 |
| Constituency Mp2: | Windsor |
| Parliament2: | Great Britain |
| Alongside2: | The Earl of Inchiquin (1722–1727) |
| Term Start2: | 1722 |
| Term End2: | 1726 |
| Birth Date: | 1696 4, df=y |
| Death Place: | London, England |
| Resting Place: | Westminster Abbey |
| Children: | George Beauclerk, 3rd Duke of St Albans Lady Diana Barrington Diane Beauclerk-Lennox Suzanne Beauclerk |
| Father: | Charles Beauclerk, 1st Duke of St Albans |
| Mother: | Lady Diana de Vere |
Charles Beauclerk, 2nd Duke of St Albans, KG KB (6 April 1696 – 27 July 1751) was a British politician who sat in the House of Commons from 1718 until 1726 when he succeeded to a peerage as Duke of St Albans. He was an illegitimate grandson of King Charles II.
He was the son and heir of Charles Beauclerk, 1st Duke of St Albans by his wife Diana de Vere, daughter and sole heiress[1] of Aubrey de Vere, 20th Earl of Oxford. His paternal grandparents were King Charles II of England and his mistress Nell Gwynne.[2] He was styled Earl of Burford until 1726.
He was educated at Eton College from 1706 and matriculated at New College, Oxford on 24 April 1714.[3] From 1716 to 1717 he undertook a Grand Tour in Italy.[4]
He was elected as a Member of Parliament for Bodmin, Cornwall, at a by-election on 26 February 1718. At the 1722 general election he was returned as an MP for Windsor. He sat until 1726 when on the death of his father he succeeded to the peerage and vacated his seat in the House of Commons. He was appointed Master of the Hawks in 1726 which office he held until his death. He was Lord Lieutenant of Berkshire from 1727 to his death. In 1730 he was appointed Constable and Governor of Windsor Castle and Warden of Windsor Forest. He was appointed Lord of the Bedchamber in 1738 and held the position until his death. He was High Steward of Windsor.[4]
On 13 December 1722 he married Lucy Werden [5] the eldest daughter and co-heiress of Sir John Werden, 2nd Baronet, with whom he had two children:
With his mistress and first-cousin Renee Lennox (1709–1774), illegitimate daughter of Charles Lennox, 1st Duke of Richmond (himself an illegitimate son of Charles II of England), he had a daughter:
With his mistress Marie-Françoise de la Rochefoucauld, daughter of Casimir-Jean Charles, Lord of Fontpastour and Chey, he had a daughter:
Beauclerk died in 1751, aged 55 in London, and was interred in Westminster Abbey.