The lifetime of Catherine the Great of Russia By anesasadzak May 2, 1729 Catherine II was born Cathrine the Great was born in Szczecin, Poland. Aug 21, 1754 Catherine gets married to Duke Peter Dec 25, 1761 Catherine becomes empress Empress Elizabeth dies which causes her nephew Peter to become Emperor Peter III Mar 20, 1762 Economic & Deficit solutions Jun 28, 1762 Declared herself as Catherine II Mar 20, 1768 Expanding borders of Russia Nov 6, 1796 Died Her death occured on November 17th, 1796 at the age of 67.