diff --git a/data/personen/willem-de-vries.json b/data/personen/willem-de-vries.json
index 93d627e..412be26 100644
--- a/data/personen/willem-de-vries.json
+++ b/data/personen/willem-de-vries.json
@@ -1,6 +1,7 @@
 {
   "id": "willem-de-vries",
   "name": "Willem de Vries",
+  "death_date": "2024-03-16",
   "email": "",
   "gender": "",
   "honorary_member": true,