In this way, Sophia Augusta Fredericka of Anhalt-Zerbst became Ekaterina, or, in English, Catherine. Sophia could have been baptized with her own name, Sophia, which was a common name in Russia. But Elizabeth had rejected this because Sophia had been the name of her own aunt, the half-sister and rival of Peter the Great who had struggled for the throne with the young tsar fifty-five years before. Instead, Elizabeth chose the name of her own mother, Catherine.
