The Collaborative International Dictionary
Autocratrix
Autocratrix \Au*toc"ra*trix\, n. [NL.] A female sovereign who is independent and absolute; -- a title given to the empresses of Russia.
Wiktionary
autocratrix
n. 1 A female autocrat. 2 (context in particular historical English) The enlightened despot (w: Catherine II of Russia), who reigned from 1762 to 1796 as empress and ''autocratrix'' of all the Russias.