Mandela's second wife, Winnie Madikizela-Mandela, also came from the Transkei area, although they, too, met in Johannesburg, where she was the city's first black social worker. They had two daughters, Zenani (Zeni), born 4 February 1958, and Zindziswa (Zindzi) Mandela-Hlongwane, born 1960. Zindzi was only 18 months old when her father was sent to Robben island. Later, Winnie would be deeply torn by family discord which mirrored the country's political strife; while her husband was serving a life sentence on the Robben Island prison, her father became the agriculture minister in the Transkei. The marriage ended in separation (April 1992) and divorce (March 1996), fuelled by political estrangement.
Mandela still languished in prison when his daughter Zenani was married to Prince Thumbumuzi Dlamini in 1973, elder brother of King Mswati III of Swaziland. Although she had vivid memories of her father, from the age of four up until sixteen, South African authorities did not permit her to visit him. The Dlamini couple live and run a business in Boston. One of their sons, Prince Cedza Dlamini (born 1976), educated in the United States, has followed in his grandfather's footsteps as an international advocate for human rights and humanitarian aid.
Zindzi Mandela-Hlongwane made history worldwide when she read out Mandela's speech refusing his conditional pardon in 1985. She is a businesswoman in South Africa with three children, the eldest of whom is a son, Zondwa Gadaffi Mandela