Princess Johanna Wilhelmine of Anhalt-Köthen ДецаPrince Karl Erdmann, 3rd Prince of Carolath-Beuthan1759 – 1817Братя и сестриPrincess Christiane Anna of Anhalt-Köthen1726 – 1790Фридрих Ердман1731 – 1797Основни данни: Wikidata.
Фридрих ЕрдманФридрих Ердман