Background
Cheyne was the son of Charles Cheyne, 1st Viscount Newhaven and his wife Lady Jane Cavendish, daughter of the first Duke of Newcastle.
Cheyne was the son of Charles Cheyne, 1st Viscount Newhaven and his wife Lady Jane Cavendish, daughter of the first Duke of Newcastle.
He matriculated at Brasenose College, Oxford on 14 July 1671 aged 14. He was elected Member of Parliament for Appleby in 1689 and sat until 1695. In 1696 he was elected Member of Parliament for Buckinghamshire and held the seat until 1701.
In that time he was three times also elected for Amersham, but chose to sit for Buckinghamshire.
He succeeded to the title and the estates at Chelsea on the death of his father in 1698. He served as Lord Lieutenant of Buckinghamshire for six months in 1702 until opposed by the Whigs.
He was re-elected Member of Parliament for Buckinghamshire in 1702 and sat until 1705. He was then elected Member of Parliament for Amersham and sat until 1707 when under the Acts of Union 1707, having a Scottish peerage, he was required to sit in the House of Lords.
In 1712, he sold the estates in Chelsea to Sir Hans Sloane.
Cheyne Walk was named after him He was Lord Lieutenant of Buckinghamshire for the second time for two years from 1712 after which he lost the position on the succession of King George I.
After he died, without heir, in 1728 he was buried in Drayton Beauchamp in Buckinghamshire. He was the last of the Cheyne family after whom Chenies in Buckinghamshire is named.
In 1681, Cheyne was elected Member of Parliament for Amersham and sat until 1687.