sentences:  On March 24, 1809 at the Battle of Yevenes, 600 of Polish lancers of the Legion of the Vistula lost all their banners (which had not been defended because nobody knew they were hidden in the carriage) when they had cut through the ambush set by 5,000 of Spaniards.The regiment was renamed in 1811 into the 7e régiment de chevau-légers lanciers.Napoleon I ordered a Second Vistula Legion formed from prisoners taken after his defeat of the Austrians at the Battle of Wagram in July 1809.