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From 3 to 17 November personal items from Constant's house in Amsterdam will be auction at Veilinghuis De Zwaan in Amsterdam, viewingg days are 25 till 31 October, go to the auctionhouse website to make an appointment: Veilinghuis De Zwaan.

Photo: Lisa Weeda


Over het IJ Festival (July 9-18) is looking for audience guides for a special VR installation. As a guide you receive the visitors, explain the VR headset and ensure a smooth run of the experience. If you are already familiar with VR, that is a bonus, but it is certainly not necessary.

Karel Appel tijdens opnames van de Vrijmanfilm in kasteel Groeneveld in Baarn, 1962 | foto Hollandse Hoogte / Nederlands Fotomuseum


On April 25th 2021 it's 100 years ago since Karel Appel was born. Fondation Constant would like to congratulate the Karel Appel Foundation with their beautiful online catalogue and with the exhibitions:

Karel Appel, Horizons of Tuscany at SLEWE Gallery | 24 April till June 27th

Karel Appel at the Cobra Museum of Modern Art Amstelveen till Octobre 24th.

Wessel Ganzevoort

Wessel Ganzevoort


After nine years Wessel Ganzevoort stepped down from the board of Fondation Constant as secretary and treasurer in December 2020. Wessel has been member of the board since the inception of Fondation Constant in November 2011. He was instrumental in setting up the foundation, determining its strategy and creating an organisation structure. More importantly he coached Trudy and Kim to work together productively as mother and daughter with endless patience and warmth. Wessel has left the foundation with a solid base to spread its wings and we are forever grateful to him.

Help us spread the word!



We will raffle one of our few new copies of the book The Hyper Architecture of Desire by Mark Wigley amongst the people who help us spread the word about the Constant 1 0 1 crowdfunding. Read what to do to get your name in that raffle bowl below.


Our Constant 1 0 1 campaign on is live! From May 2021, we will celebrate that Constant was born 101 years ago. Together with contemporary artists, makers, writers and thinkers, we investigate the significance of Constant's legacy and ideas today. More than 25 special projects with more than 40 partners are lined up!


There are not many things that are more gratifying about managing an artist estate than when a beloved object goes to a new owner who will again use it. It is even better when the object in question will be used to make new works of art. Over the last couple of months we have been lucky to share some of Constant's tools and materials with several artists.


In the process of clearing out Constant's house we came across some of his art supplies, mostly unused paper and paints or solid art tools. We would love to see these items being put to use again.

If you are an artist and interested in picking up some supplies, click the link below. We will do our best to divide items equally amongst the respondents. The supplies can be picked up on 13, 15 and 20 May. Ideally you let us know you're interested before the 13th.

Museum teacher Jolinde @Cobra Museum


The 'Cobra Museum at home' presents: International Slow Art Day 2020

Vincent Dubès

Vincent Dubès


Moving house is a proces to say the least. But moving house of an artist is a special kind of proces. A proces that we have been occupied with for more than a year now. Documenting books and archive. Figuring out where things should go. Making plans. And then last month the steps we took became visible. The art was moved and the instruments were transported to Engeland to be auctioned at Gardiner Houlgate in March.