▁Dutch man ▁Cost er ▁was ▁at ▁that ▁time ▁thought ▁to ▁be ▁the ▁invent or ▁of ▁the ▁printing ▁press . ▁ ▁Two ▁of ▁Just ine ' s ▁great - grand f athers ▁played ▁a ▁small ▁role ▁in ▁the ▁literary ▁scene ▁of ▁the ▁Netherlands : ▁On ▁her ▁father ' s ▁side ▁this ▁was ▁the ▁art istic ▁U tre cht ▁lawyer ▁Anthony ▁Jan ▁van ▁Mans vel t , ▁who ▁must ▁have ▁known ▁the ▁ 1 8 th ▁century ▁Dutch ▁poet ▁Jacob us ▁Bell amy ▁( 1 7 5 7 – 1 7 8 6 ) ▁personally . ▁He ▁painted ▁the ▁two ▁Bell amy ▁port ra its , ▁now ▁in ▁the ▁collections ▁of ▁the ▁Ze eu ws ▁Arch ief ▁at ▁M idd el burg ▁and ▁the ▁mar itime ▁museum ▁Mu ZE E um ▁at ▁V l iss ingen . ▁On ▁her ▁mother ' s ▁side ▁this ▁was ▁Mel ch ior ▁Ho ek , ▁an ▁en no bled ▁inf antry ▁officer ▁in ▁Napoleon ' s ▁Grande ▁Arm ée , ▁who ▁wrote ▁his ▁mem oir s ▁about ▁his ▁experiences ▁of ▁the ▁Russian ▁and ▁German ▁campaign s . ▁Part s ▁of ▁this ▁document ▁were ▁published ▁during ▁his ▁lifetime . ▁Just ine ' s ▁pat ernal ▁great - grand father ▁R in se ▁Ko op mans , ▁a ▁Professor ▁at ▁the ▁M enn on ite ▁Sem inary ▁in ▁Amsterdam , ▁played ▁a ▁more ▁substantial ▁role ▁in ▁the ▁literary ▁scene . ▁This ▁near ▁ancest or ▁published ▁in ▁the ▁literary ▁and ▁cultural ▁magazine ▁V ader land sche ▁letter o ef en ingen ▁(