Rob Roy became a well-known and respected cattleman — this was a time when cattle rustling and selling protection against theft was a commonplace means of earning a living. Rob Roy borrowed a large sum of money to increase his own cattle herd, but due to the deception of his chief herder, who was entrusted with the money to bring the cattle back, Rob Roy lost his money and cattle, and defaulted on his loan. As a result, he was branded an outlaw, and his wife and family were evicted from their house at Inversnaid, which was then burned down. After his principal creditor, James Graham, 1st Duke of Montrose seized his lands, Rob Roy waged a private blood feud against the duke until 1722, when he was forced to surrender. Later imprisoned, he was finally pardoned in 1727. He died in his house at Inverlochlarig Beg, Balquhidder, on 28 December 1734.