The House of Lords is the world's second-largest legislative chamber, behind China's National People's Congress.

The House of Lords is the world's second-largest legislative chamber, behind China's National People's Congress.
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In short: As the United Kingdom's upper house, the House of Lords is a unique political relic. Unlike the elected Commons, it is an appointed body that has survived centuries of reform, civil war, and existential threats. Today, it serves as a revising chamber, scrutinizing legislation with a history stretching back to the 11th century.

The House of Lords evolved from the medieval Great Council, or Magnum Concilium, which advised the king as early as the 11th century. By the 14th century, the English Parliament had split into two distinct chambers: the Commons, representing shires and boroughs, and the Lords, comprising archbishops, bishops, abbots, and nobility. For centuries, the Lords held significant power, often overshadowing the lower house, though this influence fluctuated with the strength of the monarchy and the impact of conflicts like the Wars of the Roses.

The 17th century brought a dramatic shift when the House of Lords was briefly abolished in 1649 following the English Civil War, with the Commons declaring it 'useless and dangerous.' Restored in 1660, the body gradually lost its dominance throughout the 19th and 20th centuries. The Reform Act of 1832 and the Parliament Acts of 1911 and 1949 systematically curtailed its ability to block legislation, reducing its power to delay bills for only one year. The 1999 House of Lords Act marked a major turning point, removing most hereditary peers and transforming the chamber into a predominantly appointed body.

Modern reform efforts have frequently stalled. While various commissions and MPs have proposed electing members—with some votes in 2007 showing a majority of MPs favoring a fully elected upper house—the Lords have consistently resisted these changes. As of September 2026, the chamber remains a non-elected body of 798 members. It retains a unique role in the UK, including the presence of 26 Lords Spiritual from the Church of England, making the UK one of only three nations to grant religious figures permanent legislative seats.

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