Maryland as little more than a source of revenue. During the 1750s, during the French and Indian War, when funds were needed to finance the common defence of the colonies, Maryland alone refused its share. Calvert was prepared to pass an Act raising taxes but only if his own vast estates were exempted. Benjamin Franklin later wrote: "It is true, Maryland did not then contribute its proportion, but it was, in my opinion, the fault of the Government, and not of the people". The colony was ruled through governors appointed by Calvert, such as Horatio Sharpe and later Robert Eden. Governor Sharpe was keenly aware of the difficulties placed upon his subjects by Lord Baltimore's intransigence, but his hands were tied. Calvert oversaw the end of the long-running Penn–Calvert Boundary Dispute. Marriage On 9 March 1753, he married Lady Diana Egerton (3 March 1732 – 13 August 1758), youngest daughter of Scroop Egerton, 1st Duke of Bridgewater by Lady Rachel Russell. The union was not a success, and the couple spent most of their married life apart. They had no children, and in May 1756 they were formally separated due to "incompatibility of temper". In 1758, Lady Diana "died from a hurt she received by a fall out of a Phaeton carriage", while accompanied by her husband. Although Calvert was suspected of foul play, no charges were brought. European travels Calvert's reputation for exotic living spread quickly. In 1764 James Boswell (1740–1795) began his Grand Tour of Europe, having heard that Baltimore was "living at Constantinople like a Turk, with his seraglio all around him"." Boswell also observed that Baltimore "... lived luxuriously and inflamed his blood, then he became melancholy and timorous, and was constantly taking medicines... he is living a strange, wild, life, useless to his country, except when raised to a delirium, and must soon destroy his constitution". Calvert spent a good deal of time in Italy, where the German art historian Johann Joachim Winckelmann (1717–1768) described him as being "one of those worn-out beings, a hipped Englishman, who had lost all physical and moral taste". Such was Calvert's fascination with the Ottoman Turks that in 1766, on his return to England, he pulled down part of his London house, rebuilding it in the style of a Turkish harem. In 1767 Calvert published an account of his travels in the East, titled A tour to the East,