9 3 3 , ▁was ▁a ▁Franco - G erman ▁painter ▁and ▁draft s man , ▁found ing ▁member ▁of ▁the ▁artists ' ▁association ▁Berliner ▁Sec ession . ▁He ▁was ▁mainly ▁known ▁for ▁his ▁paint ings ▁of ▁still ▁lives ▁representing ▁flowers , ▁but ▁he ▁also ▁painted ▁land sc apes ▁and ▁port ra its . ▁ ▁Career ▁▁ ▁Mos son ▁was ▁born ▁in ▁ 1 8 5 1 ▁in ▁A ix - en - Pro v ence , ▁in ▁the ▁south ▁of ▁France . ▁He ▁em igr ated ▁to ▁Berlin ▁at ▁the ▁age ▁of ▁ 1 4 , ▁where ▁he ▁finished ▁his ▁school ing . ▁His ▁art istic ▁training ▁began ▁with ▁studies ▁at ▁the ▁Academy ▁of ▁Arts , ▁Berlin , ▁with ▁profess ors ▁Carl ▁Ste ffe ck ▁and ▁Hermann ▁Fre ese . ▁He ▁continued ▁his ▁studies ▁at ▁the ▁We imar ▁Sax on ▁Grand ▁Du cal ▁Art ▁School , ▁and ▁began ▁to ▁exhib it ▁his ▁works ▁in ▁Berlin ▁in ▁ 1 8 8 4 . ▁ ▁In ▁ 1 8 9 2 , ▁Mos son ▁was ▁co - found er ▁of ▁the ▁ ▁collect ive ▁as ▁well ▁as ▁found ing ▁member ▁of ▁the ▁Berliner ▁Sec ession ▁association , ▁grouped ▁together ▁to ▁protest ▁against ▁the ▁conserv at ism ▁of ▁the ▁" Associ ation ▁of ▁Berlin ▁Art ists ". ▁After ▁the ▁split ▁of ▁this ▁group ▁in ▁ 1 9 1 3 , ▁Mos son ▁joined ▁forces ▁with ▁Max ▁Lie ber mann , ▁Max ▁S lev og t ▁and ▁others ▁to ▁form ▁the ▁Free ▁Sec ession . ▁He