@incollection{+2006+BelderbuschCharlesLéopoldvonHeydencomtede,
url = {https://www.degruyterbrill.com/database/BAB/entry/bab.L004-025-3/html},
year = {2006},
publisher = {De Gruyter Saur},
address = {Berlin, Boston},
title = {Belderbusch, Charles Léopold von Heyden, comte de},
note = {2006},
booktitle = {Biographical Archive of the Benelux Countries},
lastchecked = {2026-04-30}
}