Olry Terquem

Olry Terquem (1782 - 1862) was a French mathematician, best known for his work in geometry, where he proved the Feuerbach's theorem about the nine point circle of a given triangle. As one of the editors of the Nouvelles Annales[?] he published in 1842 the second analytical proof of the Feuerbach's theorem that the nine point circle touches the incircle and the excircles of a triangle.

Terquem was among the first who has recognized great Galois work.