Original: John Montagu , 4th Earl of Sandwich , PC , FRS ( 3 November 1718 30 April 1792 ) succeeded his grandfather , the 3rd Earl , in 1729 , at the age of ten .
Simplified: John Montagu , 4th Earl of Sandwich was born on November 3 , 1718 and died on April 30 , 1792 in Great Britain .