There have been three baronetcies created for members of the Mosley family, one in the Baronetage of England and two in the Baronetage of Great Britain. Only one creation is extant. Since 1980, the title has been held jointly with Baron Ravensdale in the Peerage of the United Kingdom. First baronetcy The first Mosley baronetcy, of Rolleston in the County of Stafford, was created in the Baronetage of England on 10 July 1640 for Edward Mosley, of Rolleston Hall, a grandson of Sir Nicholas Mosley of Hough End Hall (who acquired the Manor of Manchester in 1596 and was Lord Mayor of London in 1599) and nephew of the lawyer Sir Edward Mosley (the youngest son of Sir Nicholas and his first wife Marjorie, née Whitbroke). Sir Edward was a lawyer who had been knighted by King James I of England in 1614; appointed a justice of the peace and Attorney-General for the Duchy of Lancaster; and elected as a member of parliament for Preston in 1614, 1620–2, and 1624–5. It was Sir Edward who first acquired the properties of Rolleston Hall and Rolleston on Dove that became the family seat. Sir Edward (1596–1638) died unmarried and without issue, and his estates were inherited by his nephew—the Edward Mosley who was to become the 1st Baronet. The 1st Baronet's father was Rowland Mosley (1558–1616), another son of the aforesaid Sir Nicholas and his wife Marjorie. The second Baronet, also called Edward, sat as member of parliament for St Michaels. The baronetcy became extinct on his death in 1665. Second baronetcy The second Mosley baronetcy, of Rolleston in the County of Stafford, was created in the Baronetage of Great Britain on 18 June 1720 for Oswald Mosley, a third cousin of the second Baronet of the 1640 creation. The title became extinct on the death of the third Baronet in 1779. Third baronetcy The third Mosley baronetcy, of Ancoats in the County of Lancaster, was created in the Baronetage of Great Britain on 8 June 1781 for John Mosley, who was a first cousin of the third Baronet of the 1720 creation. His grandson, the second Baronet, represented several constituencies in the House of Commons. His grandson, the fourth Baronet, served as High Sheriff of Staffordshire in 1915. The sixth Baronet, Sir Oswald Mosley, grandson of the fourth Baronet, gained notoriety as the founder of the British Union of Fascists. He