The title of "Marquess" in Portugal is a noble rank that is typically granted to individuals who hold significant land or have rendered notable service to the crown. It is one of the higher ranks in the Portuguese nobility, positioned above a Count and below a Duke. The title has historical roots dating back to the Middle Ages, often associated with the governance of border regions. Marquesses often played important roles in the administration and military affairs of Portugal. They were responsible for overseeing large estates and managing local affairs, contributing to the stability and development of their regions. The title has been passed down through generations, with many marquesses being part of prominent noble families in Portuguese history.