"1838-02-06Z"^^ . . "Piet Retief"@en . "1780-11-12Z"^^ . "1838Z"^^ . "Afrikaner pioneer" . . . "Pieter Mauritz Retief (12 November 1780 \u2013 6 February 1838) was a South African Boer leader. Settling in 1814 in the frontier region of the Cape Colony, he assumed command of punitive expeditions in response to raiding parties from the adjacent Xhosa territory."@en . . "Pieter Mauritz Retief"@en . . "Retief, Piet"@en . . "1780Z"^^ . . .