Vincent Oge (1755-1791) was a comparatively wealthy mulatto who championed the rights of free mulattoes and the emancipation of slaves in Haiti. His official plea for equal status before the National Assembly at the beginning of the French Revolution failed.
From mixedfolks.com: "[Oge] returned to Haiti in 1790 and, when the French governor refused to remove restrictions, he tried to start a revolt amongst the mixed race population of St-Domingue. Because he ignored the advice of one of his associates to draw in the blacks, Oge was easily defeated. Ogé was tried, convicted of treason. On conviction, his elbows and knees were crushed with hammers and he was then tied to a wheel and left face upwards in the sun to die."