During 27 years in prison, Nelson Mandela's cause often found a voice in Britain which became a temporary home for many South African exiles.
ITV News Special Correspondent Rageh Omaar reports on a friendship that saw past the apartheid:
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.