Country of origin: Soviet Union
Svetlana Iosifovna Alliluyeva (Russian: Светлана Иосифовна Аллилуева; born February 28, 1926 in Moscow, Soviet Union), later known as Lana Peters, is the youngest child and only daughter of Soviet Premier Joseph Stalin and Nadezhda Alliluyeva, Stalin's second wife. In 1967, she caused an international furor when she defected and became a naturalized citizen of the United States.
To read more about Svetlana Alliluyeva, read her page on Wikipedia. Also available on youtube is part of an interview with Svetlana Alliluyeva from the Svetlana About Svetlana film.