The 1st Battalion of Royal Roussilllon served in Canada from 1756-1760. The golden lilies signify a Royal regiment. Of the 2 drapeaux d'ordonnance (the upper colour) carried by this regiment in Canada, one is supposed to have been captured by the British 35th Foot at the Battle of the Plains of Abraham on 13th September 1759 and the other was burned before the surrender of Montreal on the 8th September 1760. More information on Kronoskaf here: http://www.kronoskaf.com/syw/index.php?title=Royal_Roussillon_Infanterie