Edward Chichester, 4th Marquess of Donegall (11 June 1799 – 20 January 1889), was a clergyman who late in life became an Irish peer.
Born in Great Cumberland Place, Westminster, Chichester was educated at Eton and Trinity College, Dublin (TCD), where he graduated BA in 1822.
In 1853, his older brother's only surviving son, Frederick Richard Chichester, Earl of Belfast (1827–1853), died unmarried in Naples, leaving Lord Edward as the heir presumptive to the marquessate.
He died six years later in St Leonards-on-Sea, Sussex, and was buried in Kensal Green Cemetery, London.
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.