William Byron, 4th Baron Byron September, 1757 in Twickenham, Middlesex. William Byron, 4th Baron Byron William Byron, 4th Baron Byron (4 January 1669/70 – 8 August 1736) was an English nobleman, politician, peer, and Gentleman of the Bedchamber to Prince George of Denmark. Byron was the son of William Byron, 3rd Baron Byron and the Hon. Elizabeth Chaworth. He succeeded to the title of 4th Baron Byron in 1695 upon the death of his father. Lord Byron died on 8 August 1736, and was succeeded by his fourth (but oldest surviving) son William Byron, 5th Baron Byron (born 1722). Lord Byron married Lady Mary Egerton,
Frances Byron, Baroness Byron Frances Byron, Baroness Byron Frances, Baroness Byron (later Hay; ; c.1702 – 1759), was one of the five daughters of William Berkeley, 4th Baron Berkeley of Stratton (died 1740/1), and his wife, the former Frances Temple (died 1707). She was the third wife of William Byron, 4th Baron Byron and a great-grandmother of the poet Lord Byron. Lady Byron was one of 21 women of influence who signed Thomas Coram's petition of 1729, which led to the foundation of the Foundling Hospital. She is also known for sitting for the eighteenth-century artist William Hogarth (1697–1764), whose painting has been exhibited