The estate Nardinclant was founded by Klaas Groesbeek
at the turn of the last century. Klaas Groesbeek is one of the most remarkable figures that the Dutch bookstore Scheltema has known. Scheltema flourished under his command.
He also was a very successful art dealer. He looked after the Amsterdam part for Van Wisselingh
and operated an art trade and craft studio in Amsterdam. He catered for important clients in the US and Canada, whose works of art from large collections can be seen today in the important museums.
He also nurtured many artists. For example, Breitner had been under contract with Groesbeek for over 30 years and they were good friends. Little details about their relationship (for example, that Breitner asked Groesbeek for a sponge and soap when he was sick and needed care) can be read in letters kept in Dutch archives. Another protégé was the artist van Disselhof.