A duke is a high-ranking noble title in various European countries, often associated with the ruling class. The title is typically granted by a monarch and is one of the highest ranks in the aristocracy, just below that of a prince. Dukes often govern large areas of land and hold significant social and political influence. The female equivalent of a duke is a duchess. Dukes have historically played important roles in the governance and military leadership of their regions. In the United Kingdom, for example, the title of duke has been used since the 14th century, with notable dukes like Duke of Wellington and Duke of Edinburgh contributing to the nation's history.