Around this time, Marie met Lieutenant Gheorghe Cantacuzène, a member, albeit through an illegitimate branch, of an ancient Romanian princely family and a descendant of Prince Șerban Cantacuzino. Although not very good looking, Cantacuzène stood out using his sense of humour and fashion, as well as his talent in horse-riding. The two soon became romantically involved, but their affair was terminated after it became known by the public. As much as she condemned Marie's behaviour, her mother allowed her to come to Coburg when, in 1897, she apparently became pregnant. Historian Julia Gelardi believes that Marie gave birth to a child at Coburg; the child may either have been stillborn or sent to an orphanage immediately following its birth. There was speculation on whether Marie's second daughter, "Mignon", was Cantacuzène's daughter, and not Ferdinand's. Over the following years, Marie was also rumoured to have been romantically linked to Grand Duke Boris Vladimirovich of Russia, Waldorf Astor, Prince Barbu Știrbey and Joe Boyle. In 1903, Ferdinand and Marie inaugurated the Pelișor Castle, an Art Nouveau castle in Sinaia that King Carol commissioned for the royal couple. Marie only learned of the extent of repression used to quell the 1907 Romanian Peasants' Revolt once it was too late to intercede. She afterwards took to dressing quite often in folk costume, both at home and in public, initiating a fashion trend among young upper-class women.