He is the only son and heir of Rowland Hood, 3rd Viscount Bridport, 6th Duke of Bronté (1911–1969), of Castello di Maniace near Bronte in Sicily (a descendant of William Nelson, 1st Earl Nelson, 2nd Duke of Bronté, elder brother and heir of Admiral Horatio Nelson, 1st Viscount Nelson, 1st Duke of Bronté), by his second wife Sheila Jeanne Agatha van Meurs, only daughter of Johan Hendrik van Meurs and widow of Wing-Commander J.H. Little, DFC, Auxiliary Air Force.
He grew up in the Castello di Maniace, Sicily, and was educated at Eton College and the Sorbonne. He joined Kleinwort Benson merchant bank in London, before going on to Chase Manhattan Bank which sent him to Geneva in 1985 to be General Manager of Investment Banking. He was appointed Managing Director of Shearson Lehman Brothers, New York, in 1988. In 1991 he set up Bridport & Cie S.A. in Geneva, Switzerland, with Thomas Bartholdi, and both remain managing partners, together with Count Luca Padulli. In 1981, facing an on-going turbulent political situation in Italy and the prospect of further demands for land reform from an historically inimical faction of the local population, he sold his paternal estate of the Duchy of Bronté and his seat within it, the Castello di Maniace, granted to Admiral Nelson in 1799 by the King of the Two Sicilies.
Marriages & issue
He married twice:
- Firstly, on 5 January 1972, to Linda Jacqueline Paravicini, a daughter of Lt-Col Vincent Rudolph Paravicini, TD, of Nutley Manor near Basingstoke, Hampshire (a son of Charles Paravicini, the Swiss Ambassador to the Court of St. James's), by his wife Jacqueline Dyer, a sister of Sir John Dyer, 13th Baronet.
- Hon. Peregrine Alexander Nelson Hood (b. 1974), eldest son and heir apparent, who on 8 June 2013 at St John the Baptist, Charlton, Malmesbury (his step-father's parish church), married Serena Nikkhah (b. 1983), an Iranian-American and Executive Fashion Editor at British Vogue magazine. Guests included Princess Michael of Kent, Tom Parker Bowles and Pippa Middleton.
- Secondly, on 5 December 1979, he married Nina Lincoln (widow of Formula 1 racing driver Jochen Rindt) from whom he was divorced in 1999, having had a further son:
- Hon. Anthony Nelson Hood (b. 1983).
- Biography in euromoney.com, Viscount Bridport, Chairman, Bridport, 30 June 1999 
- Kidd, Charles, Debrett's Peerage & Baronetage 2015 Edition, London, 2015, p.158
- Debrett's Peerage, 1968, p.174
- Montague-Smith, P.W. (ed.), Debrett's Peerage, Baronetage, Knightage and Companionage, Kelly's Directories Ltd, Kingston-upon-Thames, 1968, p.174
- "Luca Rinaldo Contardo Padulli PhD: Executive Profile & Biography - Bloomberg".
- La vendita del castello e della tenuta dei Nelson
- Montague-Smith, P.W. (ed.), Debrett's Peerage, Baronetage, Knightage and Companionage, Kelly's Directories Ltd, Kingston-upon-Thames, 1968, pp.266
- Kidd, Charles, Debrett's Peerage & Baronetage 2015 Edition, London, 2015, p.1189
- "Serena Nikkhah and Peregrine Hood". Archived from the original on 4 November 2013.
- "Nina in at the finnish.(Column)". 24 May 1999. Archived from the original on 11 June 2014. Cite journal requires
- The Complete Peerage, Volume XIV
- Burke's Peerage
- "Alexander Nelson Hood, 4th Viscount Bridport of Cricket St. Thomas" at The Peerage