A marquess is a noble title in the British peerage system, ranking just below a duke and above an earl. This title is often associated with land and estates, and marquesses typically have significant responsibilities and privileges. The title is usually inherited, passed down through generations, and can also be granted by the monarch.
Marquesses often play a role in ceremonial events and may have a seat in the House of Lords, which is part of the UK Parliament. The title can also be found in other countries with similar noble systems, such as France and Spain, where it is known as "marquis."