Revolution broke out in St. Petersburg in the spring of 1917. At the height of the chaos, Maria and her siblings were stricken with measles. The Tsarina was reluctant to move the children to the safety of the imperial residence at Gatchina, even though she was advised to do so. Maria was the last of the five to fall ill and, while she was still healthy, was a major source of support to her mother. Maria went outside with her mother on the night of 13 March 1917 to plead with the soldiers to remain loyal to the imperial family. Shortly afterwards, the seventeen-year-old fell ill with measles and virulent pneumonia and nearly died. She was not told that her father had abdicated the throne until after she began to recover.