A marquess is a noble title in the British peerage system, ranking above an earl and below a duke. The title originated in the Middle Ages and was typically granted to nobles who governed border territories, known as marches. This role was important for maintaining security and order in regions that were often vulnerable to invasion. Marquesses often hold significant estates and have historical responsibilities tied to their lands. The female equivalent of a marquess is a marchioness. In modern times, the title is largely ceremonial, with marquesses participating in social and charitable activities rather than holding political power.