What important person was still in 1987 a member of the broederbond?

In 1987, an important member of the Broederbond was F.W. de Klerk, who later became the last State President of apartheid-era South Africa. The Broederbond was a secret society that played a significant role in the political landscape of South Africa, promoting Afrikaner nationalism. De Klerk's involvement with the Broederbond influenced his policies and decisions during his presidency, particularly regarding the eventual dismantling of apartheid.