▁married ▁M á ximo ▁de ▁El ía ▁y ▁Ram os ▁Mex ía ▁( d . ▁ 1 9 2 9 ). ▁ ▁Georg ▁Nikol aus , ▁Count ▁von ▁M eren berg ▁( 1 8 7 1 - 1 9 4 8 ). ▁He ▁had ▁two ▁sons ▁( of ▁whom ▁the ▁elder ▁died ▁young ), ▁and ▁one ▁daughter ▁from ▁his ▁first ▁marriage ▁( 1 8 9 5 ) ▁with ▁Princess ▁Ol ga ▁Alexand rov na ▁Y ur iev sk aya ▁( 1 8 7 4 - 1 9 2 5 ), ▁a ▁m organ atic ▁daughter ▁of ▁Emperor ▁Alexander ▁II ▁of ▁Russia . ▁ ▁Georg ▁Nikol aus ' ▁male ▁line ▁became ▁ext inct ▁with ▁the ▁death ▁of ▁his ▁son ▁Georg ▁Michael ▁Alexander , ▁Count ▁von ▁M eren berg ▁( 1 8 9 7 - 1 9 6 5 ). ▁Georg ▁Nikol aus ' ▁son ' s ▁daughter ▁Count ess ▁Cl oth ilde ▁von ▁M eren berg ▁( born ▁ 1 9 4 1 ), ▁who ▁married ▁En no ▁von ▁R int elin , ▁is ▁the ▁last ▁surv iving ▁member ▁of ▁the ▁M eren berg ▁family ▁and ▁of ▁the ▁N ass au ▁male ▁line ▁in ▁total . ▁ ▁Luxemb ourg ▁crown ▁When ▁Prince ▁Nikol aus ▁Wilhelm ▁died ▁in ▁ 1 9 0 5 , ▁his ▁nep hew ▁Grand ▁Duke ▁William ▁IV ▁of ▁Luxemb ourg ▁( or ▁Guillaume ▁IV ) ▁became ▁the ▁last ▁d yn astic ▁male ▁of ▁the ▁House ▁of ▁N ass au . ▁If ▁Nikol aus ▁Wilhelm ' s ▁children ▁had ▁been ▁de emed