nd ▁Earl ▁of ▁Peter borough ▁and ▁Lady ▁Pen el ope ▁O ' B rien , ▁daughter ▁of ▁Bar nab as ▁O ' B rien , ▁ 6 th ▁Earl ▁of ▁Thom ond . ▁ ▁On ▁ 8 ▁August ▁ 1 6 7 7 , ▁she ▁married ▁Henry ▁Howard , ▁Earl ▁of ▁A rund el , ▁who ▁later ▁succeeded ▁his ▁father ▁as ▁Duke ▁of ▁Nor folk ▁in ▁ 1 6 8 4 . ▁The ▁du ke ▁and ▁duch ess ▁separated ▁a ▁year ▁later ▁and ▁she ▁succeeded ▁to ▁her ▁father ' s ▁bar ony ▁in ▁ 1 6 9 7 . ▁ ▁The ▁du ke ▁and ▁duch ess ▁were ▁divor ced ▁in ▁ 1 7 0 0 , ▁due ▁to ▁her ▁ad ul ter ous ▁relationship ▁with ▁Sir ▁John ▁Germ ain , ▁ 1 st ▁Baron et , ▁whom ▁she ▁married ▁a ▁year ▁later ; ▁a ▁previous ▁effort ▁by ▁the ▁Duke ▁to ▁divor ce ▁her ▁in ▁ 1 6 9 2 ▁had ▁failed . ▁Although ▁he ▁had ▁obtained ▁dam ages ▁in ▁an ▁action ▁for ▁criminal ▁conversation , ▁in ▁which ▁the ▁details ▁of ▁her ▁affair ▁were ▁revealed ▁in ▁l ur id ▁detail , ▁the ▁j ury ▁awarded ▁her ▁husband ▁only ▁£ 6 6 ▁instead ▁of ▁the ▁£ 1 0 0 , 0 0 0 ▁he ▁had ▁asked ▁for . ▁This ▁no ▁doubt ▁reflect s ▁their ▁opinion ▁of ▁the ▁Duke ' s ▁own ▁conduct : ▁his ▁own ▁coun sel ▁remarked ▁that ▁his ▁charges ▁against ▁Germ ain ▁were ▁an ▁example ▁of ▁" the ▁pot ▁calling ▁the ▁k ett