In 1958, the European School, Brussels I (ESB1) opened its doors with the primary purpose of providing an education to the children of the staff of said institutions.

[3] As member states each acceded to the EC - and, later, the EU - they would successively sign up to the treaties governing the European Schools in order to guarantee an education to the children of staff of their respective nationalities.

[5] In the years since the European Schools' founding, its curriculum, ethos, and qualification had become popular amongst families of staff of other international institutions and corporations in Brussels, as well as locals.

[4] The Board of Governors of the European Schools signed an accreditation agreement with the EEBA on 13 March 2018, valid until 31 August 2021, when upon it will require renewal.

[8] The Château itself hosts the school canteen, music rooms, a small theater, and a boarding house for students age 15 and up.