William Byron, 4th Baron Byron 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, daughter of John Egerton, 3rd
William Byron (MP) with his cousin Juliana Elizabeth Byron, daughter of Admiral John Byron. Byron contested Morpeth at the 1774 general election on the Carlisle interest. He was defeated, but seated as Member of Parliament on petition on 28 January 1775. There is no record of any vote or speech by him in the eighteen months he was in Parliament. Byron as heir was due to inherit the Barony, but he died on 22 June 1776. His son was killed by cannon fire in 1794 while fighting in Corsica and the barony ultimately went to the poet Lord Byron. William Byron (MP) Hon.