Assembly Members will observe a minute's silence in the Senedd and be given time to pay tributes to Nelson Mandela. The Assembly's plenary session will begin earlier than usual in order to accomodate the tribute session. MPs paid their tributes in the Commons on Monday.
Flags outside the Senedd will again be flown at half mast and a book of condolence has also been opened for AMs and members of the public to record their own tributes.
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's first ever television interview was given to ITN reporter Brian Widlake in May 1961.
Former ITV News presenter Sir Trevor McDonald was the first journalist to interview Nelson Mandela after his release from prison in 1990.