A Tsaritsa (Цари́ца), also called tsarina, czarina, or czaritsa, was the title of Tsar's wife or a female autocratic ruler(monarch) of Russia or Bulgaria.
Others who gained the title by marrying a Tsar were Yelizaveta Alexeevna, Alexandra Fyodorovna (Charlotte of Prussia), Maria Alexandrovna (Marie of Hesse-Rhein), Marie Romanova and Eleonore, Princess Reuss-Köstritz, who became Tsaritsa of Bulgaria following her marriage to Tsar Ferdinand.
Alexandra is remembered as the last Tsaritsa of Russia, as one of the most famous genetic carriers of hemophilia, as well as for her authoritarian control over the country.
In 1895, Nicholas and Alexandra were crowned Tsar and Tsaritsa of Russia in an extravagant ceremony in Moscow.
The Tsar and Tsaritsa and all of their family, including the gravely ill Alexei, along with several family servants, were executed by firing squad in the basement of the Ipatiev House, where they had been imprisoned, on the night of July 16 (or 17), 1918, by a detachment of Bolsheviks led by Yakov Yurovsky.