Rosny-sous-Bois  Rosny-sous-Bois is a commune in the eastern suburbs of Paris, France. It is located from the centre of Paris. It is the seat of the national centre of road information of the national gendarmerie. Rosny-sous-Bois is served by two stations on Paris RER line E: Rosny – Bois-Perrier and Rosny-sous-Bois. The commune has seven public primary school groups, with each having a preschool ("maternelle") and an elementary school. There is also a private Montessori French-English bilingual primary school, Ecole maternelle privée «Les merveilles». Secondary schools: