▁had ▁an ▁affair ▁with ▁the ▁artist ▁Marcel ▁Duch amp , ▁which ▁last ed ▁for ▁several ▁years ▁from ▁ 1 9 4 6 ▁on wards , ▁ending ▁with ▁her ▁departure ▁for ▁Brazil ▁in ▁ 1 9 5 1 ▁and ▁with ▁his ▁ 1 9 5 4 ▁marriage ▁to ▁his ▁second ▁wife ▁Alex ina ▁Duch amp . ▁In ▁ 2 0 0 9 , ▁members ▁of ▁Mart ins ' s ▁family ▁released ▁letters ▁written ▁by ▁Duch amp ▁and ▁Mart ins ▁that ▁subst anti ated ▁previous ▁claims ▁that ▁Mart ins ▁was ▁indeed ▁the ▁model ▁for ▁the ▁n ude ▁figure ▁in ▁Duch amp ' s ▁final ▁master pie ce , ▁the ▁Ét ant ▁donn és , ▁as ▁opposed ▁to ▁his ▁wife ▁Te eny . ▁It ▁is ▁now ▁widely ▁acknowled ged ▁that ▁Mart ins ▁was ▁the ▁model ▁for ▁the ▁re cl ining ▁n ude ▁tor so ▁in ▁Duch amp ' s ▁installation ▁piece ▁and ▁that ▁his ▁wife ▁Alex ina ▁( Te eny ) ▁served ▁only ▁as ▁the ▁model ▁for ▁the ▁figure ' s ▁arms . ▁ ▁On ▁her ▁return ▁to ▁Brazil ▁in ▁ 1 9 4 9 , ▁critics ▁in ▁Brazil ▁did ▁not ▁favor ▁her ▁work , ▁feeling ▁it ▁was ▁non - trad itional ▁and ▁too ▁er otic . ▁Mart ins ▁helped ▁to ▁found ▁the ▁very ▁first ▁edition ▁of ▁the ▁São ▁Paulo ▁Art ▁B ienn ial .   ▁While ▁in ▁Brazil ▁she ▁took ▁part ▁in ▁the ▁International ▁Sur real ist ▁Ex hib ition ▁in ▁Paris ▁ 1 9 5 9 - 1 9 6 0 , ▁New ▁York