Catherine II
noun
Sophia Augusta of Anhalt-ZerbstCatherine the Great,1729–96,
empress of Russia 1762–96.
British Dictionary definitions for catherine the great
Catherine II
noun
known as Catherine the Great. 1729–96, empress of Russia (1762–96), during whose reign Russia extended her boundaries at the expense of Turkey, Sweden, and Poland: she was a patron of literature and the arts