Most authors state that ADk Albrecht, only male son of Adk Friederich and Pss Isabelle of Croy, married 3 times and had two daughter from his 2nd wife, Katalin Bocskay de Felsö-Bánya, the recently deceased Pss Sarolta and her sister Pss Ildiko.
However, I read there was issue from ADk Albrecht 3rd wife, a son Rudolf (1951-92) married to a Pss . Natalia Radziwill (b. 1945) with 2 sons; Max-Alex and Anton-Karl.
That Natalia Radziwill was alledgedy the daughter of Pr. Leon Radziwill and grand-daughter of Pr.Hieronymus R. and ADss Renata von Habsburg-Teschen.
Leon was supposed to have married Pss Christianne v.Windischraetz.
P.Theroff shows Leon and Christianne both died as unmaried and childless.
Was there any issue from ADk Albrecht 3rd marriage with Lydia Strauss ?