Various.

William, 1st Earl of Mansfield, died on 20 March 1793 and was succeeded by his nephew David. The plan of the Kenwood estate may have been drawn up in connection with the 2nd Earl's succession.

Henry 3rd Viscount Clifden succeeded his grandfather in 1836 and on his own death in 1866 was succeeded by his son Henry George the 4th Viscount.