Kurš apprecējās ar Izabela Flemming?

Izabela Czartoryska, née Flemming le 31 mars 1745 à Varsovie, et morte le 17 juin 1835 à Wysocko, est une princesse polonaise, salonnière, écrivain, mécène, collectionneuse d'œuvres d'art, créatrice des jardins anglais à Powązki et Puławy, fondatrice du premier musée en Pologne.

Prince Adam Kazimierz Czartoryski (1 December 1734 – 19 March 1823) was an influential Polish aristocrat, writer, literary and theater critic, linguist, traveller and statesman. He was a great patron of arts and a candidate for the Polish crown. He was educated in England and after his return to Poland in 1758, he became a member of the Sejm (parliament), Crown General of Podolia and Marshal of General Confederation of Kingdom of Poland.