For a time it was headquartered in the affluent suburb of Rivonia, in Johannesburg. On 11 July 1963, 19 ANC and uMkhonto we Sizwe leaders, including Arthur Goldreich and Walter Sisulu, were arrested at Liliesleaf Farm, Rivonia. The farm was privately owned by Arthur Goldreich and bought with South African Communist Party and ANC funds, as individuals who were not white were unable to own a property in that area under the Group Areas Act. This was followed by the Rivonia Trial, in which ten leaders of the ANC were tried for 221 militant acts designed to "foment violent revolution". Wilton Mkwayi, chief of uMkhonto we Sizwe at the time, escaped during trial.