Background
Belasyse was the only son of Honorary Henry Belasyse, who was the eldest son of Thomas Belasyse, 1st Viscount Fauconberg.
Belasyse was the only son of Honorary Henry Belasyse, who was the eldest son of Thomas Belasyse, 1st Viscount Fauconberg.
He supported the Parliamentary cause in the English Civil War, becoming close to Oliver Cromwell and marrying Cromwell"s third daughter, Mary. He also served as English ambassador in Venice. He was Lord Lieutenant of the North Riding of Yorkshire (1660–1692).
He was one of the noblemen who joined in inviting William of Orange to England, and was by that king created Earl Fauconberg, in the Peerage of England, on 9 April 1689.
Fauconberg died in 1700. On 3 July 1651 Fauconberg married Mildred, daughter of Nicholas Saunderson, 2nd Viscount Castleton.
She died 8 May 1656.
After the Restoration of the monarchy he became a member of the Privy Council to Charles II and was elevated to an earldom by William III.