The title "Duchess of Cleveland" has been held by several women in British history, most notably by Frances Stewart, who became the first Duchess in 1670. She was the mistress of King Charles II and played a significant role in the royal court during the Restoration period. The title is associated with the Cleveland area in North Yorkshire. The title is a hereditary peerage, meaning it can be passed down through generations. The current holder of the title is Lady Jane Seymour, who inherited it in the 20th century. The Duchess of Cleveland is part of the British nobility and has historical significance in the context of royal affairs.