▁One ▁of ▁the ▁famous ▁and ▁first ▁book ▁of ▁St . ▁Bos co ▁was ▁the ▁bi ography ▁of ▁Com ol lo . ▁ ▁Early ▁life ▁Born ▁on ▁ 7 ▁April ▁ 1 8 1 7 ▁in ▁Pra , ▁Cin z ano , ▁Italy , ▁to ▁Carlo ▁and ▁G io anna ▁Com ol lo . ▁Com ol lo ▁was ▁a ▁nep hew ▁of ▁the ▁Prov ost ▁of ▁Cin z ano , ▁Fr . ▁Joseph ▁Com ol lo . ▁Com ol lo ▁was ▁often ▁ill - tre ated ▁by ▁his ▁class m ates , ▁but ▁he ▁never ▁ret ali ated ▁and ▁always ▁forg ave ▁them . ▁Com ol lo ’ s ▁actions ▁made ▁a ▁great ▁impression ▁on ▁John ▁Bos co ▁so ▁much ▁so ▁that ▁because ▁of ▁him ▁Bos co ▁took ▁his ▁spiritual ▁life ▁seriously . ▁In ▁his ▁mem oir s , ▁Bos co ▁re collect s ▁that ▁Com ol lo ▁taught ▁him ▁to ▁" live ▁as ▁a ▁Christian ". ▁In ▁ 1 8 3 5 ▁Com ol lo ▁entered ▁the ▁Sem inary ▁of ▁Ch ieri . ▁ ▁Promise ▁to ▁Bos co ▁John ▁Bos co ▁and ▁Luigi ▁Com ol lo ▁were ▁close ▁friends . ▁One ▁day ▁after ▁having ▁read ▁a ▁long ▁passage ▁from ▁the ▁lives ▁of ▁the ▁sain ts , ▁they ▁talked ▁about ▁death ▁and ▁the ▁cons olation ▁that ▁would ▁arise ▁from ▁knowing ▁the ▁state ▁of ▁the ▁dece ased ▁person . ▁At ▁the ▁end ▁of ▁the ▁conversation ▁they ▁both ▁drew ▁up ▁this ▁contract : ▁" Wh iche ver ▁of ▁us ▁is ▁the ▁first ▁to ▁die ▁will ,