▁several ▁American ▁companies ▁with ▁offers ▁to ▁design ▁j ew ell ery ▁in ▁America , ▁but ▁she ▁chose ▁to ▁remain ▁in ▁Paris . ▁ ▁After ▁War , ▁creation ▁of ▁Herz - Bel per ron ▁ ▁In ▁a ▁last ▁letter , ▁dated ▁ 2 1 ▁February ▁ 1 9 4 3 , ▁sent ▁from ▁the ▁D ran cy ▁intern ment ▁camp , ▁Bernard ▁Herz ▁entr ust s ▁his ▁affairs ▁to ▁Bel per ron , ▁along ▁with ▁his ▁will , ▁asks ▁her ▁to ▁protect ▁the ▁interests ▁of ▁Al ine ▁and ▁Jean , ▁his ▁children . ▁On ▁ 6 ▁December ▁ 1 9 4 6 , ▁Jean ▁Herz , ▁the ▁son ▁of ▁Bernard ▁Herz , ▁returned ▁to ▁Paris ▁after ▁a ▁period ▁of ▁capt ivity ▁as ▁war ▁prisoner . ▁In ▁ful fil ment ▁of ▁his ▁father ' s ▁last ▁wishes , ▁Jean ▁took ▁on ▁half - own ership ▁of ▁a ▁new ▁company ▁called ▁" Jean ▁Herz - S uz anne ▁Bel per ron ▁S AR L ". ▁ ▁At ▁the ▁start ▁of ▁ 1 9 4 5 , ▁Bel per ron ▁moved ▁from ▁her ▁Mont mart re ▁flat ▁to ▁ 1 4 ▁rue ▁d ' A um ale ▁in ▁Paris , ▁a ▁short ▁distance ▁from ▁the ▁reception ▁rooms ▁of ▁the ▁Herz - Bel per ron ▁j ew ell ery ▁house . ▁Her ▁vast ▁flat ▁was ▁on ▁a ▁raised ▁level ▁of ▁a ▁ne o - class ical ▁building , ▁with ▁a ▁Far ▁Eastern ▁amb ience ▁harm on iously ▁bl ended ▁with ▁a ▁classical ▁a est h etic ▁style .