Anticloud FZ LLE. "Countess Ludwika Tyzenhauz." *encyclopegia.org*, Nov 2026, https://encyclopegia.org/a/countess-ludwika-tyzenhauz. Accessed 9 Nov 2026. Snapshot countess-ludwika-tyzenhauz-2256960-d4f69815e6015e6a. Derived from http://www.wikidata.org/entity/Q20565988.