Appointed for their lifetime only, these Lords' titles are not passed on to their children. The Queen formally appoints life Peers on the advice and recommendation of the Prime Minister.
Law Lords (or Lords of Appeal in Ordinary)
The Law Lords are salaried, full-time judges who carry out the judicial work of the House of Lords.
The Queen appoints Law Lords on the recommendation of the Prime Minister, who receives advice from the Lord Chancellor. (This method of appointment will change when the relevant provisions of the Constitutional Reform Act 2005 come into force and selection is made by a selection commission whose choice is forwarded to the Lord Chancellor.)
Candidates usually come from serving judges of the Court of Appeal in England and Wales, the Court of Session in Scotland, and the Court of Appeal in Northern Ireland.
Archbishops and bishops
A limited number of 26 Church of England archbishops and bishops sit in the House, passing their membership on to the next most senior bishop when they retire. The Archbishops of Canterbury and York traditionally get life peerages on retirement.
Elected hereditary Peers
The right of hereditary Peers to sit and vote in the House of Lords was ended in 1999 by the House of Lords Act but 92 Members were elected internally to remain until the next stage of the Lords reform process.