It was first created in the Peerage of England in 1694 in favour of the soldier and politician Henry Sydney.

It was created for the second time in the Peerage of the United Kingdom in 1801 in favour of Charles Marsham, 3rd Baron Romney.

[2] His grandson, the fourth Baronet (who succeeded his nephew), was also a Clerk of the Court of Chancery and represented Maidstone in the House of Commons.

His son, the fifth Baronet, also sat as Member of Parliament for Maidstone and served as Governor of Dover Castle.

In 1801 he was created Viscount Marsham, of The Mote in the County of Kent, and Earl of Romney, in the Peerage of the United Kingdom.