Description : ANC activist Winnie Mandela, who was the former first lady of South Africa and wife of Nelson Mandela, the former president of South Africa and Nobel Peace Prize Laureate, at the Seventh Annual Nelson Mandela Lecture delivered by Nobel Peace Prize Laureate Bangladeshi banker and founder of Grameen Bank Professor Muhammad Yunus, at the city hall in Johannesburg, South Africa. July 11, 2009.