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In page Louis François Félix Musnier:

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At the Battle of Castalla on 13 April 1813, Robert commanded the 1st Division in Musnier's absence.[9] In June 1813, Musnier's division included 4,163 men in seven battalions.[10] This unit missed the Battle of Ordal on 13 September 1813.[11] By late 1813, Musnier's division had shrunk to 3,561 troops in six battalions.[12]