The Peerage of Portugal refers to the system of nobility in Portugal, which includes titles such as duke, marquis, count, viscount, and baron. This hierarchy was established during the medieval period and has evolved over centuries, often linked to the monarchy and land ownership. Nobility played a significant role in the governance and social structure of the country. The titles in the Peerage of Portugal are often hereditary, passed down through generations. Although the monarchy was abolished in 1910, many noble families still exist today, preserving their titles and traditions. The peerage remains a symbol of historical significance and cultural heritage in Portugal.