The Collège de Boncourt (French pronunciation:[kɔlɛʒdəbɔ̃kuʁ]), in the (now) 5th arrondissement of Paris, rue Bordet or Bordeille (modern rue Descartes), was established in 1353 by Pierre Becoud (which became "Boncourt" by alteration)
The college was once completely refurbished in 1688 by Pierre Galand, its principal. It was attached to the College de Navarre. Then, from 1738, a new pavilion took the place of the old college. From 1804 to 1976, the building housed the offices of the École Polytechnique, then those of the Ministry of Higher Education and Research.
Bibliography
Henri Chamart, "Le Collège de Boncourt et les origines du théâtre classique", Mélanges offerts à M. Abel Lefranc, Paris, Droz, 1936, p. 246-260.
Recueil des titres concernans l'union des collèges de Boncour et Tournay au collège royal de Navarre. Procez verbal du 31 aoust 1637. Read on line.