Tatiana von Metternich-Winneburg was born in Saint Petersburg, the second daughter of Prince Hilarion Sergueïevitch Vassiltchikov (1881–1969), a member of the Russian Imperial Parliament Fourth Duma, and his wife, the former Princess Lidiya Leonidovna Vyazemskaya (1886–1946). On 6 September 1941 in Berlin-Grunewald, she married Paul Alfons von Metternich-Winneburg, Prince of Metternich-Winneburg, Grandee of Spain, 1941 of Portella and Count of Königswart (1917–1992), son of Clemens von Metternich, Prince of Metternich-Winneburg, and Isabel de Silva y Carvajal, countess of Castillejo.
