Yuri Andropov
His earliest documented name was Grigory Vladimirovich Andropov-Fyodorov; he changed it to Yuri Andropov only several years later. While his original birth certificate disappeared, it was established that Andropov was in fact born in Moscow where his mother had been working in a women's gymnasium since 1913 throughout 1914 and until 1917.
Yuri Andropov
To make things more complicated, he named different dates of her death at various occasions: 1927, 1929, 1930 and 1931. The story of her adoption was also highly likely a mystification. In 1937 Andropov went through a check when applied for the Communist Party membership, and it turned out that "the sister of his native maternal grandmother" (he called her his aunt) who was living with him and who supported the legend of his Ryazan peasant origins was in fact his nurse who had been serving at Fleckensteins long before he was born.