The French Marshal Michel Ney took Ciudad Rodrigo on July 9, 1810 after a 24-day siege. The 5,500-man Spanish garrison of Field Marshal Don Andreas de Herrasti put up a gallant defense, surrendering only after French artillery opened a breach in the walls and their infantry were poised for an assault. The Spanish suffered 461 killed and 994 wounded, while 4,000 men and 118 cannon were captured. Ney's VI Corps lost 180 killed and over 1,000 wounded during the siege. The French soldiery then pillaged the city. The siege delayed Marshal André Masséna's invasion of Portugal by a month.