▁was ▁separated ▁from ▁F j ø s anger . ▁Marie ▁K ro hn , ▁the ▁nie ce ▁of ▁Dan ck ert ▁Dan ck ert sen ▁K ro hn , ▁who ▁had ▁owned ▁F j ø s anger ▁until ▁his ▁death ▁in ▁ 1 7 9 5 , ▁built ▁a ▁m ansion ▁at ▁Gam le h au gen . ▁A ▁Sch ack ▁St enberg ▁purchased ▁Gam le h au gen ▁in ▁ 1 8 3 8 . ▁In ▁ 1 8 6 4 , ▁Alexander ▁Bull , ▁the ▁son ▁of ▁the ▁viol in ist ▁Ole ▁Bull ▁bought ▁the ▁property , ▁however , ▁he ▁sold ▁it ▁to ▁co pper ▁sm ith ▁Ole ▁Andreas ▁G und ers en ▁only ▁two ▁years ▁later . ▁The ▁last ▁owner ▁who ▁operated ▁Gam le h au gen ▁as ▁a ▁farm ▁was ▁the ▁merchant ▁Anton ▁Mo hr , ▁who ▁bought ▁it ▁in ▁ 1 8 7 8 . ▁When ▁he ▁died ▁in ▁ 1 8 9 0 , ▁his ▁wid ow , ▁A let he ▁Mo hr , ▁sold ▁the ▁property ▁to ▁a ▁pair ▁of ▁art is ans ▁from ▁Ber gen . ▁However , ▁she ▁was ▁allowed ▁to ▁continue ▁using ▁the ▁property ▁and ▁the ▁main ▁building ▁due ▁to ▁a ▁cla us ule ▁in ▁the ▁sale ▁contract . ▁ ▁In ▁ 1 8 9 8 , ▁Christian ▁Mich elsen , ▁a ▁politician ▁and ▁sh ipping ▁magn ate , ▁bought ▁the ▁property . ▁He ▁demol ished ▁the ▁existing ▁main ▁building , ▁a ▁Swiss ▁ch alet ▁style ▁m ansion , ▁and ▁ordered ▁the ▁construction