What is John Montagu, 4th Earl of Sandwich?
{{Infobox Officeholder | honorific-prefix = [[The Right Honourable]] | name=The Earl of Sandwich | honorific-suffix = [[Her Majesty's Most Honourable Privy Council|PC]] [[Fellow of the Royal Society|FRS]] | image = John Montagu, 4th Earl of Sandwich.jpg | imagesize = 200px | smallimage = | caption = | order1 = [[Secretary of State for the Northern Department]] | term_start1 = 19 December 1770 | term_end1 = 12 January 1771 | primeminister1 = [[Frederick North, Lord North|Lord North]] | predecessor1 = [[William Nassau de Zuylestein, 4th Earl of Rochford|The Earl of Rochdale]] | successor1 = [[George Montagu-Dunk, 2nd Earl of Halifax|The Earl of Halifax]] | term_start2 = 9 September 1763 | term_end2 = 10 July 1765 | primeminister2 = [[George Grenville]] | predecessor2 = [[George Montagu-Dunk, 2nd Earl of Halifax|The Earl of Halifax]] | successor2 = [[Augustus FitzRoy, 3rd Duke of Grafton|The Duke of Grafton]] | order3 = [[Lords Commissioners of the Admiralty|First Lord of the Admiralty]] | term_start3 = 1771 | term_end3 = 1782 | primeminister3 = [[Frederick North, Lord North|Lord North]] | predecessor3 = [[Edward Hawke, 1st Baron Hawke|Sir Edward Hawke]] | successor3 = [[Augustus Keppel, 1st Viscount Keppel|The Viscount Keppel]] | term_start4 = 1763 | term_end4 = 1763 | primeminister4 = [[John Stuart, 3rd Earl of Bute|The Earl of Bute]] | predecessor4 = [[George Grenville]] | successor4 = [[John Perceval, 2nd Earl of Egmont|The Earl of Egmont]] | term_start5 = 1748 | term_end5 = 1751 | primeminister5 = [[George Grenville]] | predecessor5 = [[John Russell, 4th Duke of Bedford|The Duke of Bedford]] | successor5 = [[George Anson, 1st Baron Anson|The Lord Anson]] | order6 = [[Postmaster General of the United Kingdom