
ANC stalwart imprisoned with Mandela.
Sisulu joined the ANC Youth League, becoming a key organizer alongside Nelson Mandela and Oliver Tambo. He helped transform the ANC into a mass movement against apartheid.
Sisulu was convicted in the Rivonia Trial for sabotage and conspiracy to overthrow the apartheid state. He was sentenced to life imprisonment and sent to Robben Island, where he became a mentor to younger prisoners.
Sisulu was released from prison after 25 years, following a campaign by the international community. His release signaled the beginning of the end of apartheid and he resumed his role as a senior ANC leader.
Sisulu was elected Deputy President of the ANC at the party's national conference. He played a key role in the negotiations for a democratic South Africa and served as a mentor to younger leaders.