 In 1932 he moved his family and growing art collection to the Lange Vijverberg in The Hague, in the house that now houses the Museum Bredius.This building was only a few hundred yards from the young Netherlands Institute for Art History, and across the Hofvijver from the Mauritshuis.When war threatened the Netherlands, the Lugts together sent the top pieces of their impressive collection of drawings, prints, books, and paintings in six packages to Switzerland.