Tatiana and her brother, Boris Blatnik (born on 21 February 1978), are the natural children of Ladislav Vladimir Blatnik, born in Slovenia, and Marie Blanche Bierlein (born in Munich on 10 December 1954).
Tatiana a její bratr Boris Blatnik (narozen 21. února 1978) jsou dětmi Ladislava Vladimíra Blatnika, narozeného ve Slovinsku, a Marie Blanche Bierlein (narozené 10. prosince 1954 v Mnichově).