The British Peerage is a hierarchical system of titles and ranks in the United Kingdom, traditionally associated with the nobility. It includes several ranks, such as Duke, Marquess, Earl, Viscount, and Baron. These titles can be hereditary, passed down through generations, or life peerages, granted for an individual's lifetime. Members of the peerage often have seats in the House of Lords, one of the two houses of the Parliament of the United Kingdom. The peerage system has historical roots, dating back to the medieval period, and continues to play a role in British society and governance today.