John Montagu, 5th Earl of Sandwich, PC (26 January 1744 – 6 June 1814), styled Viscount Hinchingbrooke until 1792, was a British peer and Tory politician.
Lord Sandwich married firstly his distant cousin Lady Elizabeth Montague-Dunk, only daughter of the 2nd Earl of Halifax, 8 March 1766. Lady Elizabeth died in 1768 and Sandwich married Lady Mary Powlett, daughter and co-heir of Admiral Harry Powlett or Paulet, 6th and last Duke of Bolton. Lord Sandwich lived and was a rural landowner at Hinchingbrooke House today in north Cambridgeshire and held other farming interests. His eldest child, John George Montagu, by his first wife died in 1790. Lord Sandwich died in June 1814, aged 70, and was succeeded by his eldest son by his second wife, George.[4] William is thought to be named after his uncle, William Augustus, who died at Lisbon in 1776.
Lord Sandwich had two children by his first wife, Lady Elizabeth Montague-Dunk:
Caroline Montagu, died July 1782
Hon. John George Montagu, born 3 April 1767, died 29 November 1790
After Lady Elizabeth's death on 1 July 1768, Lord Sandwich married Lady Mary Powlett on 25 April 1772:
In Sandwich-Carrots!—dainty Sandwich-Carrots (1796), James Gillray caricatured Lord Sandwich slipping money into the pocket of an attractive carrot-seller, said to be one of his usual amusements.
Schedule of rental of the estates of John Montagu, 5th Earl of Sandwich and PETER DE SALIS, in the Manor of Clare in County of Armagh, 1802.
Hinchingbrook House, Huntingdon, 1787. Formerly the home of Oliver Cromwell's family.
^William Anderson (1877). The Scottish nation; or, the Surnames, Families, Literature, Honours and Biographical History of the People of Scotland by William Anderson. p. 421.