The 1st Duke of Manchester, born as William Montagu in 1737, was a prominent British nobleman and politician. He inherited the title of Duke in 1790, following the elevation of his family’s status. The Montagu family had a long history of service in the House of Lords, and the 1st Duke was known for his involvement in various political matters during his lifetime. He served as a Member of Parliament and held several important positions, including Lord Lieutenant of Ireland. The 1st Duke of Manchester passed away in 1848, leaving a legacy that continued through his descendants, who maintained the family's influence in British society.