Nelson Mandela's ex-wife Winnie Madikizela-Mandela, right, comforts his widow Graca Machel,

Nelson Mandela's ex-wife Winnie Madikizela-Mandela, right, comforts his widow Graca Machel, center, during the burial ceremony for the South African leader last December.
Edmond Jiyane / AFP/Getty Images
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