Charles Beauclerk (May 8, 1670 - May 10, 1726), was an illegitimate son of King Charles II of England by his mistress Nell Gwynne.

Charles was made Baron Hedington and Earl of Burford in December, 1676. He later was made Duke of St. Albans. He became colonel in the 8th regiment of horse in 1687, and served with the emperor Leopold I, being present at the siege of Belgrade in 1688. After the Battle of Landen in 1693, William III made Beauclerk captain of the gentlemen pensioners, and four years later gentleman of the bedchamber. His father had given him the reversion of the office of Hereditary Master Falconer and that of Hereditary Registrar of the Court of Chancery, which fell vacant in 1698. His Whig sentiments prevented his advancement under Queen Anne, but he was restored to favor at the accession of George I. Beauclerk died at Bath. His wife Diana, daughter and heiress of Aubrey de Vera , last Earl of Oxford, was a well-known beauty, who became lady of the bedchamber to Caroline of Ansbach, Princess of Wales, and survived until January 15, 1742. Charles was succeeded by his eldest son, also named Charles Beauclerk, while his youngest son, Lord Aubrey Beauclerk (c. 1710-1741), became a captain in the royal navy, and died in a fight in the West Indies on March 22, 1741.

There are several legends as to how Beauclerk was made Earl of Burford. The first is that on arrival of the King, his mother said, "Come here, you little bastard, and say hello to your father." When the king rebuked her for calling him that, she replied, "Your Majesty has given me no other name to call him by." In response, Charles created him Earl of Burford.

Another legend is that Beauclerk's mother held him out of a window (or above a river) and threatened to drop him unless he was given a peerage. Charles supposedly cried out "God save the Earl of Burford!" and subsequently created that peerage.

|- style="text-align: center;" | width="30%" |Preceded by:
The Duke of Beaufort | width="40%" style="text-align: center;" |Captain of the Gentlemen Pensioners
1714–1726 | width="30%" |Succeeded by:
Marquess of Hartington