The monument on Execution hill near uMgungundlovu that commemorates the slaughter of the voortrekker leader Piet Retief and his entourage of 72 men, 14 sons and 30 servants on 6 February 1838. The monument, dating from 1922, overlooks the mass grave in which the remains of the deceased were buried by the Wen commando on 21 December 1838.