The Marquess of Queensberry refers to John Sholto Douglas, the 9th Marquess of Queensberry, a Scottish nobleman born in 1844. He is best known for his association with the sport of boxing, particularly for the set of rules he established in 1867, known as the Queensberry Rules. These rules aimed to create a more organized and safer framework for boxing matches, promoting fair play and the use of gloves. The Queensberry Rules significantly influenced modern boxing, laying the groundwork for the sport's regulations today. They introduced concepts such as timed rounds, a referee, and the prohibition of certain tactics, which helped to elevate boxing from a rough street sport to a more respected athletic competition.