Brocket Hall early held variously of Hatfield Manor and the Bishop of Ely. Sir Matthew Lamb's son was Peniston Lamb, 1st Viscount Melbourne and he was often visited at Brocket Hall by the Prince Regent, who had a liaison with Lady Melbourne. The next owner was William Lamb, 2nd Viscount Melbourne, who was Queen Victoria's first Prime Minister from 1835–41, when she regularly visited. His wife, Lady Caroline, infamously had an affair with Lord Byron causing Lord Melbourne much embarrassment. For one of his birthdays she held a state banquet in the Saloon, at which she had herself served from a large
William Lamb, 2nd Viscount Melbourne Lamb's hallmark was finding the middle ground. Though a Whig, he accepted (29 April 1827) the post of Chief Secretary for Ireland in the moderate Tory governments of George Canning and Lord Goderich. Upon the death of his father in 1828 and his becoming the 2nd Viscount Melbourne, of Kilmore in the County of Cavan, he moved to the House of Lords. He had spent 25 years in the Commons, largely as a backbencher, and was not politically well known. In November 1830, the Whigs came to power under Lord Grey. Melbourne was Home Secretary. During the disturbances of 1830–32