Chichester was returned by his kinsman, the 2nd marquess of Donegall, for Carrickfergus in 1812 and Belfast in 1818. A member of the corporation of both boroughs, he occasionally served as mayor of Carrickfergus and frequently presented to the Commons petitions from the commercial interests of Belfast. At the general election of 1820 he was returned for Carrickfergus after Lord Belfast, Donegall’s eldest son, withdrew in order to contest county Antrim (in fact, he finally came in for Belfast).
Chichester expressed doubts about government legislation relating to Irish distilleries, 14, 18, 24 July 1820.
Chichester attended the county Antrim meeting for addressing the king on the death of the duke of York, 6 Feb., but appears to have been absent from the division on the Catholic question, 6 Mar. 1827.
At the general election of 1830 Chichester faced a serious contest at Carrickfergus against Hill, but withdrew, alleging malpractices, at the end of the first day of polling. Since Lord Belfast, in whose triumphant procession he joined, succeeded in the county contest, Chichester was brought in for Belfast by the Donegall-controlled corporation. He attended the Belfast meeting which issued a declaration against repeal of the Union, 5 Nov., and spoke against O’Connell on this subject in the House, 19 Nov.
Chichester was absent from the division on the second reading of the reintroduced reform bill, 6 July, and voted for hearing counsel on the Appleby petition, 12 July 1831. However, thereafter he divided steadily in favour of the bill’s details when present. He moved the second reading, 15 July, and brought up the report, 25 July, of the Ulster Canal amendment bill, which was given royal assent, 23 Aug.
He was unable to stand for Belfast at the general election of 1832 because another of Donegall’s sons, the inexperienced and less popular Lord Arthur Chichester, stood successfully on the family interest. Chichester was therefore obliged again to contest the venal borough of Carrickfergus, where he was accused of failing to fulfil his promise to make available £100 for the good of the town.
in the last Parliament went to Lord Althorp* and told him his story and made his request, and going out of the room kept exclaiming, ‘Well, my lord, I think myself the most ill-used man in all Ireland’, upon which old George, who has been porter to all the chancellors of the exchequer for the last 30 years, came into the room immediately after Sir A.C. was gone, and said, ‘My lord, I hope you won’t mind what Sir A.C. has said, for I have heard him say the same thing to all the chancellors of the exchequer for the last 20 years’.
Three Diaries, 354.
He died from bilious fever in May 1847, at his house in Adelaide Place, Belfast. Described as a zealous committeeman on local benevolent societies, his office of weighmaster, recently purchased from the 3rd marquess of Donegall, reverted to the corporation at his death.
