Who is Alix from Nicholas and Alexandra and what is their importance?

Princes Alix Victoria Helena Louise Beatrice is a German princess who marries Nicholas. She is from Hesse-Darmstadt, a grand duchy in Germany. She takes the name Alexandra and is crowned Empress when Nicholas is crowned Tsar. She has five children with Nicholas, four daughters and one son. The granddaughter of Queen Victoria was always uncomfortable in Russian society. She felt that all of the balls and banquets were meaningless.