Tutu has been treated for prostate cancer for years. He rarely makes public appearances. He was seen in September during a visit by Prince Harry and Meghan, the Duchess of Sussex, with their baby Archie.
Tutu was awarded the Nobel in 1984 for his efforts to end the system of white minority rule, or apartheid, and promote racial reconciliation in South Africa. He has lent his moral stature to causes and campaigns around the world over the years.
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