25 September 2026
Symposium – Please keep it under wraps
Agenda
19 November 2026
On Thursday 19 November 2026, Clinkaert Publishers and Stichting KROON are organising the symposium ‘Wees er vooral geheim meede’ at Bronbeek in Arnhem.
The symposium is being organised to mark the launch of the book *Wees er vooral geheim meede … Brieven aan Pieter Otto van der Chijs uit de tijd van de Belgische opstand 1831–1835* (Keep it strictly confidential … Letters to Pieter Otto van der Chijs from the time of the Belgian uprising 1831–1835 ) by Dr George Sanders. Speakers from the Netherlands Institute for Military History and the War Heritage Institute in Brussels will take part in the symposium.
‘Be sure to keep this a secret …’ is a collection of letters from the die-cutters at the Royal Mint and from G.B. Loos, director of the Berliner Medaillen Münze, to P.O. van der Chijs, professor of numismatics at Leiden University. Dr George Sanders edited this source publication and provided the letters with a comprehensive historical introduction. They deal with the production of medals and decorations from the years 1831–1835, always against the backdrop of the conflict with Belgium.
Would you like to take part in the symposium ‘Wees er vooral geheim meede…’? We ask for a contribution towards the costs of €15 per person. Every participant will receive a copy of the book and is invited to join us afterwards for an extensive Indonesian buffet.
You can register easily by ordering a ticket for the symposium via Tertio Fluctus. Once payment has been made, you will be registered immediately. [Register for €15]
We believe it is important that the symposium is accessible to everyone. Is the standard admission fee a barrier for you? If so, you can take advantage of the reduced rate of €7.50. No explanation is required. Click here to register for the reduced rate.
Are you having trouble paying online? Please feel free to contact us. We’ll be happy to help you find an alternative way to register and pay.
Programme
10.00 – 10.25
Drop-in session with coffee and spekkoek
10.25 – 10.30
A welcome address by Dr A.A.J. Scheffers, Director of Clinkaert Publishers Symposium Please keep this a secret …
10.30 – 11.15
Presentation entitled ‘A street battle, a campaign and a siege: Belgium and the Netherlands 1830–1832’ by Prof. Dr B. Schoenmaker, Director of the Netherlands Institute for Military History
11.15 – 11.45
Presentation ‘Above all, keep it a secret…’ by Dr G.P. Sanders, Director Stichting KROON
11.45 – 12.30
Presentation: ‘The Eon of Liberty – Gare la Bombe. Hope and derision in the Belgian Revolution of 1830’ by Marc Brans, collections manager at the War Heritage Institute, Brussels
12.30 – 12.40
Closing remarks by Dr A.A.J. Scheffers
12.40 – 14.00
Indonesian meal
Location
Sumatra Room at Restaurant Kumpulan
At the Bronbeek estate,
Velperweg 147, 6824 MB Arnhem
At the Bronbeek estate,
Velperweg 147, 6824 MB Arnhem
