Personal life
On 20 November 1847 in Somersetshire, Chichester was married to Mary Nicholetts (1829–1879), eldest daughter of John Nicholetts of South Petherton, Somerset. Before her death at Youlston on 28 June 1879, they were the parents of fourteen children, including:
Rev. Arthur Chichester (1848–1898), who married Emily Constance Sargent in 1869.
Sir Edward Chichester, 9th Baronet (1849–1906), a Rear Admiral in the Royal Navy; he married Catharina Emma Whyte, a daughter of Cmdr. Robert Charles Whyte of Instow, North Devon in 1880.
Beatrice Chichester (1850–1931), who married Charles Chichester, son of Robert Chichester and Clarentina Mason, in 1870.
Henry Chichester (1851–1929), who married Adah Georgiana Holloway, daughter of Horatio Francis Kingsford Holloway and Mary Ann Breton, in 1876.
Norah Chichester (1852–1933), who married Francis Bernard Parr Manning, a Licentiate of the Royal College of Physicians, in 1899.
Eveline Chichester (1854–1947), who married Edward Fairfax Studd, son of Maj.-Gen. Edward Mortlock Studd and Emma Beatrice Bayly, on 3 April 1877.
Geraldine Chichester (1858–1930), who married Percy Williamson Barons Northcote, son of the Rev. George Barons Northcote, in 1888.
Gerard Chichester (1859–1906), an Honorary Lt.-Col. in the 4th Battalion, North Staffordshire Regiment; he married Alice Pinckney, daughter of George Pinckney, in 1891.
George Chichester (1865–1933), who married Frances Caroline Hibbert, daughter of Col. Hugh Robert Hibbert, in 1900. After her death, he married her sister, Essex Mary Hibbert, in 1908.
Rev. Charles Chichester (1868–1938), the Rector at Shirwell; he married Emily Annie Page, a daughter of Samuel Page, in 1896.
Orlando Chichester (1873–1933), a Captain in the 6th Battalion, Devonshire Regiment; he married Isabel Clare Parks-Smith, daughter of Egerton Parks-Smith, in 1899.
After the death of his first wife, he married Rosalie Amelia (née Chamberlayne), Lady Chichester (1843–1908), a daughter of Thomas Chamberlayne of Cranbury Park and widow of his distant cousin, Sir Alexander Chichester, 2nd Baronet (son of Sir John Chichester, 1st Baronet), on 23 January 1883. Among her siblings were Tankerville Chamberlayne, MP, Francesca Maria Chamberlayne (wife of Cecil Howard, 6th Earl of Wicklow) and Agnes Caroline Chamberlayne (wife of Lt.-Col. George Charles Keppel Johnstone, a son of Sir Frederick Johnstone, Bt). From her first marriage, she was the mother of Rosalie Chichester, who donated all of her property to the National Trust, including Morte Point and the fully intact Arlington Court estate when she died in 1949.
Sir Arthur died on 13 July 1898. As his eldest son predeceased him, he was succeeded in the baronetcy by his second son, Edward. His widow, Rosalie, died on 22 August 1908.
