Baron Grantley, of Markenfield, in the County of York is a title in the Peerage of Great Britain. It was created on 9 April 1782 for Sir Fletcher Norton, Attorney General from 1763 to 1765 and Speaker of the House of Commons from 1770 to 1780. His son, the second Baron, was also a politician and represented Richmond, Wigtown Burghs, Guildford and Surrey in Parliament. He was succeeded by his nephew, Fletcher Norton, the third Baron. He was childless and on his death the title passed to his nephew, the fourth Baron. the title is held by the latter's great-great-grandson, the eighth Baron, who succeeded his father in 1995.

Barons Grantley (1782)

The heir presumptive is the present holder's brother, Francis John Hilary Norton (b. 1960). The heir presumptive's heir apparent, and last in line to the peerage, is his only son John Ferenc Brinsley Norton (b. 2005)

Arms