https://it.wikipedia.org/wiki/John_Montagu,_IV_conte_di_Sandwich
John Montagu, IV conte di Sandwich - Wikipedia
john montaguivcontedisandwich
https://archive.org/details/regimentalrecor00burggoog
Regimental Records of the Bedfordshire Militia : John Montagu Burgoyne : Free Download, Borrow, and...
Book digitized by Google and uploaded to the Internet Archive by user tpb.
https://digital.library.yale.edu/catalog?f%5BsubjectHeadingFacet_ssim%5D%5B%5D=Sandwich%2C+John+Montagu%2C+Earl+of%2C+1718-1792
Subject Heading: Sandwich, John Montagu, Earl of, 1718-1792 - Yale University Library Search Results
https://digital.library.yale.edu/catalog?f%5BsubjectHeadingFacet_ssim%5D%5B%5D=Sandwich%2C+John+Montagu%2C+Earl+of%2C+1718-1792+%3E+Caricatures+and+cartoons&page=1&sort=year_isim+asc%2C+id+asc%2C+archivalSort_ssi+asc
Subject Heading: Sandwich, John Montagu, Earl of, 1718-1792 Caricatures and cartoons - Yale...