Birth: 23 February 1758

Place or Registered Place of Birth: Not Known

Baptism: Not Known

Place of Baptism: Not Known

Death: Not Known

Place or Registered Place of Death: Not Known

Father: Colonel Charles Churchill (1720-1812)

Mother: Lady Maria Walpole (1725-1802)

Spouse(s): Charles Sloane Cadogan

Date of Marriage: 8 August 1777

Place or Registered Place of Marriage: Caversham, Oxfordshire

Children:

Lady Emily Maud Cadogan (-1839)
Lt.-Col. Hon. Henry Cadogan (1780-1813)
Lady Charlotte Cadogan (1781-1853)
Admiral George Cadogan, 3rd Earl Cadogan (1783-1864)
Lady Louisa Cadogan (1787-1843)

Notes:

Mary Churchill was born on 23 February 1758. She was the daughter of Colonel Charles Churchill and Lady Maria Walpole. She married Charles Sloane Cadogan, 1st Earl Cadogan, son of General Charles Cadogan, 2nd Baron Cadogan of Oakley and Elizabeth Sloane, on 10 May 1777. She and Charles Sloane Cadogan, 1st Earl Cadogan were divorced in 1796 on the grounds of criminal conversion with a Reverend Cooper.

The above date may have been confused with the baptism of a Mary Churchill in Exeter, Devon on this date - The paremts were Christopher and Mary Churchill.

Colonel Charles Churchill married Lady Maria Walpole, daughter of Robert Walpole, 1st Earl of Orford and Maria Skerret.

Colonel Charles Churchill.
Colonel Charles Churchill was the natural son of General Churchill, (son of an elder brother of the Great Duke of Marlborough,) by the celebrated actress Mrs. Oldfield. He married Lady Mary Walpole, natural daughter of Sir Robert Walpole, for whom the latter, on his quitting office, procured a patent of precedence as an Earl's daughter. By Lady Mary Walpole, Colonel Churchill was the father of a beautiful family; of whom, Mary married Charles Sloane, first Earl of Cadogan, by whom she was the mother of the present Earl; of Lady Emily married to the Hon. and Rev. Gerard Wellesley ; and of Lady Charlotte married, first, to Sir Henry Wellesley, now Lord Cowley, and secondly, to the present Marquis of Anglesea.

Charles Churchill (c.1720-1812) was the colonel and son of the governor Charles Churchill by Anne Oldfield, Member of Parliament. His grandfather, also Charles Churchill, was a British army officer and brother of the 1st Duke of Marlborough. In 1791, with his encouragement, Nottingham played its first-ever cricket match against Marylebone Cricket Club and was thoroughly dismissed, first by ten wickets and then, with 22 men on the park, by thirteen runs.

Lady Maria Walpole was born illegitimately between 1723 and 1744. She was the daughter of Robert Walpole, 1st Earl of Orford and Maria Skerret. She married Colonel Charles Churchill.

Walpole was created Earl of Orford after he retired from the premiership in 1742, and he used his influence with King George II to have his illegitimate daughter by Lady Walpole, Maria, granted the rank and precedence of an earl’s daughter, so that she became ‘Lady Maria Walpole’. She was born between 1723 and 1734 and later married Colonel Charles Churchill of Chalfont, with whom she had two daughters.

Mary Churchill