When, after her marriage with Ferdinand, Marie arrives at the Palace of Bucarest, she finds all very ugly. Her rare exits downtown seem to her tedious. It is only with time, the birth of her children and the discovery of the summer residence of Sinaïa in the Alps of Transylvania which she will learn, little by little, to like her new country.
In 1914, she becomes Queen and appears a courageous and devoted young woman who, with a rare sens of the personal sacrifice, will work without stop in the national hospitals throughout the Great War. Become extremely popular, she will exert a strong influence on her husband and, consequently, the control of the power.
Moreover, Marie was also a woman of letters and an artist who painted and wrote in french tales, a novel and memories. What will be worth to her to be elected, in 1918, corresponding of the Institute, in the Art schools.
Speaking about her, the Count of Saint-Aulaire will make this flattering description : " she has the intelligence of a man and the charm of a woman ".