757 hereditary peers had their entitlement to sit in the House of Lords removed by the House of Lords Act 1999, based on the Orders of precedence in the United Kingdom.

Excluded hereditary peers +KeyLiving peer as of Acceded to the throneQualifying title for Irish Peers‡Living peer who was subsequently returned to the House as of ‡Peer who subsequently returned to the House and has since died§Living peer who was subsequently elected to the House as of §Peer who subsequently elected to the House and has since died