▁ 1 3 ▁December ▁ 1 6 5 0 ▁and ▁Tur enne , ▁who ▁had ▁advanced ▁to ▁rel ieve ▁the ▁place , ▁fell ▁back ▁hurried ly . ▁But ▁he ▁was ▁a ▁terrible ▁oppon ent , ▁and ▁Pl ess is - P ras lin ▁and ▁Maz arin ▁himself , ▁who ▁accompanied ▁the ▁army , ▁had ▁many ▁mis giv ings ▁as ▁to ▁the ▁result ▁of ▁a ▁lost ▁battle . ▁The ▁mar shal ▁chose ▁never theless ▁to ▁force ▁Tur enne ▁to ▁a ▁decision , ▁and ▁the ▁Battle ▁of ▁Bl anc - Ch amp ▁( near ▁Som me - Py ) ▁or ▁R eth el ▁was ▁the ▁consequence . ▁ ▁Both ▁sides ▁were ▁at ▁a ▁stand st ill ▁in ▁strong ▁positions , ▁Pl ess is - P ras lin ▁doubt ful ▁of ▁the ▁trust worth iness ▁of ▁his ▁caval ry , ▁but ▁Tur enne ▁was ▁too ▁weak ▁to ▁attack , ▁when ▁a ▁dispute ▁for ▁preced ence ▁arose ▁between ▁the ▁Gard es ▁Fran çais es ▁and ▁the ▁Pic ard ie ▁regiment . ▁The ▁royal ▁inf antry ▁had ▁to ▁be ▁re arr anged ▁in ▁order ▁of ▁regiment al ▁senior ity , ▁and ▁Tur enne , ▁seeing ▁and ▁des iring ▁to ▁profit ▁by ▁the ▁att endant ▁dis order , ▁came ▁out ▁of ▁his ▁strong hold ▁and ▁attacked ▁with ▁the ▁greatest ▁vig our . ▁The ▁battle ▁( 1 5 ▁December ▁ 1 6 5 0 ) ▁was ▁severe ▁and ▁for ▁a ▁time ▁doubt ful , ▁but ▁Tur enne ' s ▁F ron de urs ▁gave ▁way ▁in ▁the ▁end , ▁and