On 16 Jun 1722 John Churchill 1st Duke Marlborough (age 72) died at Cranbourne Lodge, Windsor. His daughter Henrietta Churchill 2nd Duchess Marlborough (age 40) succeeded 2nd Duchess Marlborough, 2nd Marchioness of Blandford, 2nd Countess of Marlborough, 2nd Baroness Churchill of Sandridge in Hertfordshire. Francis Godolphin 2nd Earl Godolphin (age 43) by marriage Duke Marlborough.

On 05 Jun 1740 Henry Grey 1st Duke Kent (age 69) died without surviving male issue. Duke Kent, Marquess Kent, Earl Kent and Viscount Gooderich extinct. His granddaughter Jemima Campbell 2nd Marchioness Grey (age 16) succeeded 2nd Marchioness Grey.