"During her lifetime, Maria, too young to become a Red Cross nurse like her elder sisters during World War I, was patroness of a hospital and instead visited wounded soldiers. Throughout her lifetime she was noted for her interest in the lives of the soldiers. The flirtatious Maria had a number of innocent crushes on the young men she met, beginning in early childhood. She hoped to marry and have a large family." - Wikipedia
Maria was the third oldest Romanov Princess.