 He would fictionalize his marriage in his novel "Blind Date", speaking of Weir under the pseudonym Mary-Jane Kirkland.Kosiński later, in 1968, married Katherina "Kiki" von Fraunhofer (1933–2007), a marketing consultant and a member of the Bavarian nobility.Towards the end of his life, Kosiński suffered from multiple illnesses and was also under attack from journalists who accused him of plagiarism.