He had previously been created Baron Clifford of Londesborough , in the County of York, on 4 November 1644, also in the Peerage of England.

Their eldest son Charles Boyle, Viscount Dungarvan, succeeded his mother as third Baron Clifford in 1691 but predeceased his father.

He had two daughters but no sons and on his death in 1753 the barony of Clifford of Lanesborough and earldom of Burlington became extinct.

On 10 September 1831, the earldom of Burlington was revived when their third and youngest son Lord George Cavendish was created Baron Cavendish of Keighley, in the County of York, and Earl of Burlington, in the Peerage of the United Kingdom.

[1] In 1858, his grandson, the second Earl, succeeded his first cousin once removed as seventh Duke of Devonshire.