Prime Minister David Cameron said his abiding memory of Nelson Mandela was "his complete forgiveness, his total lack of malice" towards those who had imprisoned him.
Mr Cameron said the former South African president had "a wonderful sense of humour and a wonderful generous sense":
Six-year-old Emma Williams was invited to sit on Nelson Mandela's lap when he visited Wales in June 1998. Now 22, she speaks to ITV News.
Nelson Mandela touched aspects of British public life in a way that very few other international figures have managed.