The Sisters belonged to the French congregation known as 'Les Religieuses de l'Assomption' – The Assumption Sisters, an order of nuns that already were well established and were running 17 similar schools worldwide, in France, Spain, Nicaragua, The Philippines, Belgium and El Salvador.

They brought with them the mission of their Foundress Mother Marie-Eugénie Milleret: to change the world through the education of children.

A good education would provide them with morality and integrity necessary to influence decisions in the wider world and create opportunities for justice in society.

As the number of pupils began to grow, the school needed a larger building and so moved to St Andrea’s, a Jesuit college, in Ordrup.

The farm was surrounded by stables and fields and was an ideal home for the expanding school and its pupils.

The school continued to be called “L’Institut de l’Assomption” and was now run by a group of Sisters who lived on the premises.

It was still managed as a private institution and continued to offer education in French to daughters of Danish and International families.

Although the teaching was clearly Christian, the school did not set out to convert or indoctrinate pupils, rather instil in them the values and characteristics found in the Gospel.

The Mother Superior at the time, Mere Madeleine Eugenie had a special devotion to Saint Therese, from whom the name of the church derives.

During the Second World War when Denmark was occupied the Sisters with the help of some local people risked their lives hiding Jewish children from the Nazis under the church.

500 students from 4–16 years of age and caters - irrespective of creed and nationality - for those who are only in Denmark on a temporary basis.

The main building is an old manor house situated in park-like grounds dating from the 18th century.