es ▁Mar ques ▁producer ▁and ▁remains ▁in ▁descend ants ▁Rou za ud ▁ownership . ▁Crist al ▁is ▁a ▁prec ursor ▁prest ige ▁cu v ée ▁brand ▁and ▁was ▁made ▁commer cially ▁available ▁in ▁ 1 9 4 5 .. ▁Form er ▁the ▁officers ▁and ▁gener als ▁of ▁the ▁Russian ▁Imperial ▁Army ▁in ▁ex ile , ▁in ▁Paris , ▁continued ▁to ▁drink ▁this ▁champ agne ▁ ▁Family ▁company ▁ ▁Louis ▁Ro eder er ▁remains ▁one ▁of ▁the ▁few ▁family - owned ▁independent ▁companies ▁run ▁by ▁real ▁wine ▁special ists . ▁The ▁stock ▁r ation ▁in ▁Louis ▁Ro eder er ' s ▁cell ars ▁represents ▁between ▁four ▁and ▁five ▁years ' ▁sales . ▁ ▁Production ▁ ▁From ▁a ▁v ine yard ▁area ▁of ▁, ▁Louis ▁Ro eder er ▁produces ▁two ▁third s ▁of ▁the ▁g rap es ▁needed ▁for ▁its ▁production , ▁s our cing ▁the ▁remaining ▁required ▁fruit ▁from ▁established ▁far ming ▁contacts . ▁ ▁The ▁v int age ▁cu v ées ▁include ▁the ▁V int age , ▁Ros é ▁V int age , ▁with ▁Pin ot ▁no ir ▁and ▁Ch ard onn ay ▁in ▁an ▁approximately ▁ 7 : 3 ▁proportion , ▁and ▁the ▁ 1 0 0 % ▁Ch ard onn ay ▁Bl anc ▁de ▁Blan cs . ▁ ▁The ▁prest ige ▁cu v ée ▁Crist al , ▁is ▁a ▁bl end ▁of ▁around ▁ 4 0 % ▁Ch ard onn ay ▁and ▁ 6 0 % ▁Pin ot ▁no ir . ▁This ▁prest ige ▁cu v ée ▁is ▁also ▁available ▁as