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Our heritage

Founded in 1903 by the Congregation of the Sisters of St.-Joseph, the Institut International de Lancy (IIL) was initially the Collège Marie-Thérèse. 

The story. As a Catholic boarding school for girls, we welcomed students from all over the world. Nearly 120 years later, we are one of the oldest private schools in Switzerland. A non-profit association, we offer students an international education with a contemporary approach to academic achievement and personal development.