The mother of the nation, mama Winnie Madikizela-Mandela was surrounded by her family when she passed away on Monday.
In a statement Dr Richard Friedland, the chief executive officer of Netcare said, "Mrs Mandela was surrounded by her family and loved ones.
"On behalf of Netcare we express our deep sorrow at the passing of Mrs Mandela, the mother of our nation, a heroine and struggle icon, who devoted her life to the liberation of South Africa."
Friedland said Madikizela-Mandela passed away peacefully.
"Our thoughts and prayers are with her daughters and family at this sad time," he said.
The 81-year-old, who was fondly known and the Mother of the Nation, died on Monday afternoon after a long illness.