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 Monson, 1st Viscount Oxenbridge William Monson, 1st Viscount Oxenbridge William John Monson, 1st Viscount Oxenbridge PC (18 February 1829 – 16 April 1898), known as The Lord Monson between 1862 and 1886, was a British Liberal politician. He served as Captain of the Yeomen of the Guard between 1880 and 1885 and in 1886 under William Ewart Gladstone. Monson was the son of William Monson, 6th Baron Monson, and Eliza, daughter of Edmund Larken. The diplomat Sir Edmund Monson, 1st Baronet, was his younger brother. Monson was elected Member of Parliament for Reigate in 1858, a seat he held until he succeeded his father