This ruler granted the use of his name to the author of The Cavalry Maiden, who was assigned female at birth but passed as a male cavalryman. This ruler’s general Count Bennigsen failed (15[1])to destroy the enemy’s reserves after crossing the Alle. Three arrowhead-shaped earthworks built to protect the left flank of this ruler’s army were stormed by Marshal Davout. (*) Barclay (10[1])de Tolly’s strategy of scorched-earth retreat was unpopular with this ruler, who replaced him after the Battle of Smolensk. While on a raft in the Neman River, (10[2]-5[1])this ruler pledged to join the (-5[1])Continental System in the first Treaty of Tilsit. (10[1])This ruler’s general Mikhail Kutuzov would later inflict heavy casualties on the French army at the Battle of Borodino. For 10 points, name this tsar who ruled during Napoleon’s invasion of Russia. ■END■ (10[2])