*This is a fictional story, I own nothing besides the plot*
Her Royal Highness Princess Katharina of Czechoslovakia and Romania, Archduchess of Austria (Katharina Gloria Amálie Viktoria von Württemberg; born 20 June 1984), is the third child and youngest daughter of King Ferdinand VI and Queen Theresa of Czechoslovakia. She stands fifth in the line of succession behind her brother, Crown Prince Albert, his children Prince Otto and Princess Viola and her sister, Princess Helena.
She married Prince Michael of Romania on January 13th, 2012 at the Church of Saint Nicholas in Prague. They are 8th in line to the Romanian throne.
They have three children. Their oldest daughter, Princess Elisabeta was born July 11th, 2013. Their son, Prince Philip was born March 23rd, 2015. On August 8th, 2016, Katharina gave birth to their second daughter who they named Milica.