The House of Lords is the upper house of the Parliament of the United Kingdom. Like the lower house, the House of Commons, it meets in the Palace of Westminster in London, England. One of the oldest institutions in the world, its origins lie in the early 11th century and the emergence of bicameralism in the 13th century.

The House of Lords Act 1999 is an Act of the Parliament of the United Kingdom that reformed the House of Lords, one of the chambers of Parliament. The Act was given Royal Assent on 11 November 1999. For centuries, the House of Lords had included several hundred members who inherited their seats ; the Act removed such a right. However, as part of a compromise, the Act did permit ninety-two hereditary peers to remain in the House. Another ten were created life peers to enable them to remain in the House.