Conversation so far:
who is in charge when the czar heads to the military front
In 1915, the czar personally took over command of the army, leaving the Czarina Alexandra in control at home.
What is the rank of the person the czar left in control of the country
Czarina Alexandra was Czar's wife, she was the granddaughter of Britain's Queen Victoria and the daughter of Louis IV, the Grand Duke of Hesse-Darmstadt.

Question: Did the decision lead to good results
Self-contained rewrite: Did the decision to leave Czarina Alexandra in charge of the country lead to good results