"Lords of the Marches" refers to the noble titles held by rulers in the border regions, particularly in medieval England and Wales. These lords were responsible for maintaining order and defending their territories against invasions and raids. Their lands, known as the Marches, were often characterized by a mix of cultures and frequent conflicts. The title was significant during the Middle Ages, as the Lords of the Marches played a crucial role in the governance and military defense of the border areas. They had special privileges and powers, including the ability to administer justice and raise armies, which helped to stabilize these volatile regions.