s ▁bapt ism al ▁record ▁announced ▁" father ▁uncertain " ▁( G al ile o ' s ▁D augh ter ▁ 2 4 , ▁D ava ▁Sob el , ▁ 1 9 9 9 ). ▁Gal ile o ' s ▁position ▁as ▁a ▁professor ▁and ▁his ▁many ▁friend ships ▁among ▁the ▁Ven et ian ▁nob ility ▁probably ▁made ▁it ▁un wise ▁for ▁him ▁to ▁figure ▁officially ▁as ▁the ▁children ' s ▁father . ▁ ▁When ▁Gal ile o ▁left ▁Pad ua ▁for ▁good ▁in ▁ 1 6 1 0 ▁to ▁take ▁up ▁his ▁position ▁at ▁the ▁Med ici ▁court ▁in ▁Florence , ▁he ▁took ▁the ▁two ▁daughters ▁with ▁him ▁but ▁left ▁their ▁mother ▁behind ▁with ▁ 4   year - old ▁V inc en zo , ▁who ▁joined ▁his ▁father ▁in ▁Florence ▁a ▁few ▁years ▁later . ▁ ▁With ▁Marina ▁no ▁longer ▁in ▁the ▁family , ▁Gal ile o ▁put ▁his ▁two ▁daughters ▁in ▁a ▁convent ▁and ▁managed ▁to ▁have ▁V inc en zo ▁legit im ated ▁by ▁the ▁Grand ▁Duke ▁of ▁T usc any . ▁In ▁his ▁ 1 6 1 9 ▁request ▁for ▁this , ▁Gal ile o ▁declared ▁that ▁at ▁the ▁time ▁of ▁his ▁coh ab itation ▁with ▁Marina , ▁she ▁" had ▁never ▁been ▁married " ▁and ▁was ▁" al ready ▁dead " ▁at ▁the ▁drawing ▁up ▁of ▁the ▁act . ▁V inc en zo ▁studied ▁law ▁and ▁later ▁became ▁a ▁l uten ist ▁like ▁his ▁names ake ▁grand father . ▁He ▁died ▁in ▁ 1 6 4 9