Known as the "father of British inland navigation," in 1759 the Duke constructed, with engineer James Brindley [1716-1772], the earliest canal in England. Forty-two miles in length, the canal united Worsley with Manchester and Runcorn on the Mersey above Liverpool. The Duke died unmarried, and his Dukedom and Marquessate expired, but the Earldom and minor titles reverted to his cousin, 7th Earl of Bridgewater. The Duke amassed a huge wealth, including his large art collection, which he left to his nephew, George Granville, afterwards 1st Duke of Sutherland. [Compiled from sources and references recorded on CMS]
Malet, Hugh. The Canal Duke, a biography of Francis, 3rd Duke of Bridgewater. Devon, 1961.