The Czar of all the Russias (also Czar or Tsar; formally By the Grace of God, Emperor (Czar) and Autocrat of All the Russias) was the absolute monarch of the Russian Empire. The feminine form of the title was Czaritza.

The title was Russian for "Caesar" (which the Russians regarded as superior to "King" or "Emperor"), and was diplomatically recognized as a successor office to that of Emperor of the Eastern Roman Empire. The first Czar, Ivan the Terrible, was nephew to the last Byzantine Emperor.

In 2267, Pavel Chekov sarcastically declared to Apollo that he was Czar of all the Russias. (TOS episode: "Who Mourns for Adonais?")

List of CzarsEdit

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