Britain's Prince Harry smiles (R) as he shakes hands with Mbuso Mandela, the grandson of the late former South African president Nelson Mandela, near Mandela's statue at the Mandela Foundation in Houghton, Johannesburg, December 3, 2015. Prince Harry is attending "Remembering Madiba", a commemoration of Mandela, and will tour the private archives of the Nelson Mandela Centre for Memory. REUTERS/Siphiwe Sibeko