Saarbrücken houses several institutions of primary and secondary education. Notable is the Saarland's oldest grammar school, the "Ludwigsgymnasium", which was founded in 1604 as a latin school. The building of Saarbrücken's bi-lingual French-German "Deutsch-Französisches Gymnasium", founded in 1961 and operating as a laboratory school under the Élysée Treaty, also houses the "École française de Sarrebruck et Dilling", a French primary school which offers bi-lingual German elements. Together with several Kindergartens offering bi-lingual French-German education, Saarbrücken thus offers a full bi-lingual French-German formal education.