She worked as a publicist and event planner for Diane von Fürstenberg and, in 2016, published the cookbook A Taste of Greece.

Her maternal grandparents are Ernst Bierlein and Countess Ellinka Karin Harriet von Einsiedel.

[6] Until July 2010, when she resigned to concentrate on her wedding plans, Tatiana had worked in the publicity department as an event planner for fashion designer Diane von Fürstenberg.

[7] Prince Nikólaos's engagement to Tatiana Blatnik, with whom he had been in a long-term relationship, was announced on 28 December 2009, by the office of King Constantine in London.

[8] Blatnik and Prince Nikólaos were married in the Orthodox Church of St. Nicholas, Spetses, Greece, on 25 August 2010.