Roscellinus (1050–1121)
Born 1050 CE, died 1121 CE.
Roscelin of Compiègne (c. 1050 – c. 1121), better known by his Latinized name Roscellinus Compendiensis or Rucelinus, was a French philosopher and theologian, often regarded as the founder of nominalism.
Text from the Wikipedia article Roscellinus, licensed CC BY-SA 4.0.