The Logis Vion was purchased in 1720 by Madame de Bouillé for use as the Mother House of the Daughters of Wisdom. She knew Father de Montfort, had been involved in much of his work and was passionate about promoting the establishment of his order in Saint-Laurent-sur-Sèvre.

On moving in, the first Sisters of Wisdom occupied the upper floor of the house as their living quarters, devoting the ground floor to their good works, opening a charitable school for boys and girls and caring for the sick.

By 1723, their house had become simply too small for them.

At around the same time, the Montfortian Missionaries had moved into the Chêne Vert building. Since there were fewer of them and their mission was expanding more slowly, they agreed with the Daughters of Wisdom to swap buildings.

The missionaries then adopted the Logis Vion as their living quarters, and extended the building, after which it became known as the Long House. It was here that the Marquis de Magnanne, the old friend and disciple of Montfort and benefactor of the Montfortian family, lived out the rest of his life.

The Long House was occupied by the Missionaries until 1788, and became commonly known as the house of the Holy Spirit.

In post-revolutionary France, it was successively a Sunday school, a retirement home for priests, a school and an orphanage.

Since 1964, the Long House has been a museum dedicated to the Montfortian Family.