Arthur Hill, 5th Marquess of Downshire

Arthur Wills Blundell Trumbull Sandys Roden Hill, 5th Marquess of Downshire (24 December 1844 – 31 March 1874), was an Irish peer, styled Earl of Hillsborough until 1868.

[1][3] Hill married Georgiana Elizabeth Balfour (died 12 January 1919), on 25 July 1870,[4] daughter of Colonel John Balfour of Balbirnie (1811–1895) and Lady Georgiana Isabel (Campbell) Balfour (died 3 December 1884).

[3] Their only child was Arthur Wills John Wellington Trumbull Blundell Hill who became the 6th Marquess of Downshire.

He was a captain in the Royal South Down Regiment of Militia from 1862, a cornet and lieutenant in the 1st Regiment of Life Guards from 1866, a cornet in the West Somerset Regiment of Yeomanry and Deputy Lieutenant of County Down in 1872, and the Hereditary Constable of Hillsborough Fort.

[3] Arthur Hill and his father were instrumental in major tree planting within the park of their Hillsborough Castle.