He spent 27 years in prison, much of it on Robben Island, after being convicted of capital offences at the infamous Rivonia Trial.
U hete 27 wa malembe ekhotsweni, yo tala ya wona eXihlaleni xa Robben, ehenhla ko voniwa milandzu leyi hlanganisaka ku kavanyeta matirhele ya mfumo wa xihlawuhlawu.