▁present ▁Earl ▁of ▁Derby ▁is ▁his ▁desc endant . ▁ ▁Edward ▁Stanley ▁( 7 ▁January ▁ 1 6 3 9 Oct ober ▁ 1 6 6 4 ), ▁died ▁un mar ried ; ▁William ▁Stanley ▁( 1 8 ▁October ▁ 1 6 4 0 2 5 ▁October ▁ 1 6 7 0 ), ▁died ▁un mar ried ; ▁John ▁Stanley ▁( 4 ▁November ▁ 1 6 4 1 1 0 ▁September ▁ 1 7 1 9 ), ▁married ▁a ▁common er ; ▁two ▁sons ▁( d ied ▁young ) ▁ ▁D augh ters ▁▁ ▁Charlotte ▁Stanley ▁( d ied ▁young ) ▁Henri ette ▁Stanley ▁( 1 7 ▁November ▁ 1 6 3 0 2 7 ▁December ▁ 1 6 8 5 ), ▁who ▁married ▁William ▁W ent worth , ▁ 2 nd ▁Earl ▁of ▁Stra ff ord , ▁but ▁died ▁without ▁issue ; ▁Am elia ▁Stanley ▁( 1 6 3 3 2 2 ▁February ▁ 1 7 0 2 / 3 ), ▁who ▁married ▁John ▁Murray , ▁ 1 st ▁Mar qu ess ▁of ▁Ath oll . ▁She ▁was , ▁in ▁her ▁issue , ▁he ir ess ▁of ▁her ▁father ' s ▁Bar ony ▁of ▁Str ange , ▁which ▁as ▁it ▁was ▁de emed ▁( like ▁that ▁created ▁in ▁ 1 2 9 9 ) ▁to ▁have ▁been ▁created ▁by ▁writ , ▁was ▁able ▁to ▁pass ▁to ▁females . ▁In ▁ 1 7 3 6 ▁the ▁title ▁passed ▁to ▁her ▁grand son ▁James ▁Murray , ▁ 2 nd ▁Duke ▁of ▁Ath oll .