Yelizaveta Petrovna (December 29, 1709 – January 5, 1762 (New Style); December 18, 1709 – December 25, 1761 (Old Style)), also known as Yelisavet and Elizabeth, was an Empress of Russia (1741 – 1762) who took the country into the War of Austrian Succession (1740 – 1748) and the Seven Years' War (1756 – 1763). Wikipedia
The definitive Wikipedia entry for Elizabeth Of Russia. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Elizabeth_of_Russia