▁and ▁a ▁number ▁of ▁others ▁involved ▁were ▁never ▁brought ▁to ▁trial , ▁which ▁would ▁have ▁made ▁their ▁test imon ies ▁public . ▁Instead , ▁their ▁conf essions ▁were ▁se aled , ▁and ▁they ▁were ▁imprison ed ▁for ▁life ▁by ▁lett re ▁de ▁c ach et . ▁Les age , ▁together ▁with ▁Gu ib ourg , ▁Louis ▁G alet ▁and ▁Roman i , ▁were ▁imprison ed ▁at ▁the ▁Ch ate au ▁de ▁Bes an con , ▁while ▁Mar guer ite ▁Mon vo ison , ▁together ▁with ▁La ▁Pel let iere , ▁La ▁P ou lain , ▁La ▁Del ap orte ▁and ▁Catherine ▁L ero y ▁were ▁in car cer ated ▁at ▁Belle - Î le - en - Mer . ▁In ▁April ▁ 1 6 8 3 , ▁Les age ▁indicated ▁to ▁the ▁governor ▁of ▁Bes an con ▁that ▁he ▁had ▁information ▁about ▁a ▁plot ▁toward ▁the ▁monarch . ▁Lou vo is ▁recommended ▁that ▁he ▁be ▁put ▁on ▁water ▁and ▁bread ▁and ▁be aten ▁day ▁and ▁night ▁to ▁make ▁him ▁talk , ▁but ▁that ▁he ▁was ▁a ▁habit ual ▁li ar . ▁His ▁date ▁of ▁death ▁is ▁unknown . ▁ ▁In ▁fiction ▁He ▁is ▁port rayed ▁in ▁a ▁novel ▁by ▁Jud ith ▁Mer k le ▁R iley : ▁The ▁Oracle ▁G lass ▁( 1 9 9 4 ). ▁Also ▁more ▁recently ▁in ▁" The ▁City ▁of ▁C rows " ▁ ▁References ▁▁ ▁Fr ant z ▁Fun ck - B rent ano : ▁Prin ces ▁and ▁Po ison ers ▁Or ▁Studies ▁of ▁the ▁Court ▁of