The north-western border of the commune is delineated by the Ruisseau de Longedeau stream flowing into the Ru des Barentons stream and continuing north changing its name a few times before joining the Souche river.
Alexandre Louis Philippe Marie Berthier (July 20, 1883, Paris - May 30, 1918, Barenton-sur-Serre; 4th Prince de Wagram) was the son of Bertha Clara von Rothschild of the German branch of the prominent Rothschild family and Louis Philippe Marie Alexandre Berthier, 3rd Prince de Wagram (1836–1911).
Born in the village of Barenton in Basse-Normandie, Postel made his way to Paris to further his education.
On 2 March he had license to alienate in mortmain the manor and advowson of Barenton to the masters and scholars of St. Michael, Cambridge.