Research Briefing
Hereditary Peers in the House of Lords Since 1999
The House of Lords Act 1999 ended the centuries-old linkage between the hereditary peerage and membership of the House of Lords. The majority of hereditary Peers left the House of Lords in November 1999, but under a compromise arrangement, 92 of their number, known as ‘excepted’ hereditary Peers still sit in the House today.