During the [[Second World War]], a teenaged Bartok, the daughter of a Jewish father and a Catholic mother, was forced to marry Hungarian Nazi officer Géza Kovács; the marriage was [[annulment|annulled]] after the war on the grounds of [[coercion]] of a minor.<ref>[http://www.tcm.com/tcmdb/person/10936|49801/Eva-Bartok/ Eva Bartok], [[Turner Classic Movies]]; accessed 22 April 2018.</ref>
She had four other marriages, all of which ended in divorce, including her final marriage, to actor [[Curd Jürgens]] (1955–56). Her daughter Deana was born in 1957, shortly after the marriage to Jürgens ended.<ref>{{cite news|first=Bruce|last=Emond|work=[[The Jakarta Post]]|title=The Star Who Came to Jakarta|url=http://www.thejakartapost.com/news/2010/10/23/the-star-who-came-jakarta.html|date=23 October 2010|url-status=dead|archiveurl=https://web.archive.org/web/20120206224525/http://www.thejakartapost.com/news/2010/10/23/the-star-who-came-jakarta.html|archivedate=6 February 2012}}</ref><ref>{{cite news|url=http://www.indianexpress.com/ie/daily/19980519/13950424.html|work=[[The Indian Express]]|title=Sinatra's secret child speaks out|date=19 May 1998}}</ref> Three decades later, Bartok claimed Deana's biological father was actually [[Frank Sinatra]], with whom she had a brief affair in 1956.<ref name="ct940817"/>
She died on 1 August 1998 in London.<ref name=Vallance />