Catherine II
From Tardis Wiki, the free Doctor Who reference
Catherine II (also known as Catherine the Great) was a Russian empress in the 18th century.
In 1774, George III received the last mammoth in Europe as a gift from Catherine II. (PROSE: The Adventuress of Henrietta Street, COMIC: Political Animals)
She built the Winter Palace to house her art collection. (PROSE: The Book of the War)
In 1785, she was in St Petersburg when her grandson was saved from a Time Sprite by Jack Harkness and John Hart, both of whom she had sex with before they took their leave. (AUDIO: The Death of Captain Jack)