Edward Chichester, 4th Marquess of Donegall (11 June 1799 – 20 January 1889), was a clergyman who late in life became an Irish peer. From 1831 until October 1883, he was known as The Very Rev. Lord Edward Chichester. He was the son of The 2nd Marquess of Donegall.
On 21 September 1821, he married Amelia Spread Deane O'Grady, the third daughter of Henry Deane O'Grady by his marriage to Dorcas Spread. They had five children:[2]
A large part of the Donegall estates was not entailed and in 1883 were inherited by the 3rd Marquess's only surviving child, Harriet Augusta Anna Seymourina, the wife of The 8th Earl of Shaftesbury.