The Castle in Zeist and its residents from 1745 to 1924. Bulletin KNOB, [S. l.], v. 101, n. 3-4, p. 81–120, 2002. DOI: 10.7480/knob.101.2002.3-4.310. Disponível em: https://bulletin.knob.nl/index.php/knob/article/view/vanGroningen81-120. Acesso em: 21 apr. 2026.