While I'm at it......Baronets are not peers - they have never been able to sit in the House of Peers (Lords). They are hereditary knights, i.e. when they die their eldest son takes on the 'Sir' title. With 'ordinary' knights like Cliff Richard, the title dies with them. One of Mrs Thatcher's more clever tricks was to resurrect baronetcies and give one to her husband, thus her son is now Sir Mark Thatcher, second baronet.