A "Czarina" is the title given to the wife of a Czar, the emperor of Russia. This title was used primarily during the time of the Russian Empire, which lasted from the early 16th century until the early 20th century. The Czarina often played a significant role in the royal court and could influence political decisions and social affairs. Czarinas were known for their involvement in cultural and charitable activities, as well as their patronage of the arts. Notable Czarinas include Catherine the Great, who expanded the empire and modernized Russia, and Alexandra Feodorovna, the last Czarina, who was married to Nicholas II.