Catherine I was the second wife of Peter the Great and Empress of Russia from 1725 until her death.
Catherine II Public domain scan of 17th-century etching print, free to use, no copyright restrictions image - Picryl description Public domain scan of 18th-century etching print, free to use, no copyright re More
Ekaterina Alexeevna - Russian Emperors and Empresses Екатерина Алексеевна - Русские Императоры и Императрицы
Династия Романовых. Император Петр Первый (Великий) и Императрица Екатерина I. Первоисточник: книга "Святая Русь под скипетром Дома Романовых : 1613 г. - 1913 г." : [Альбом портретов. - Москва] : журнал "Воин и More