en zo ▁De ▁Fe o ▁was ▁born ▁in ▁Mira b ello ▁S ann it ico ▁near ▁Camp ob asso ▁in ▁September ▁ 1 8 7 6 . ▁His ▁pat ernal ▁uncle , ▁Francesco ▁De ▁Fe o , ▁was ▁a ▁patri ot ▁during ▁the ▁Ris org imento ▁and ▁in ▁ 1 8 6 0 ▁commanded ▁the ▁" First ▁Leg ion ▁S ann it ica ". ▁The ▁young ▁V inc en zo ▁was ▁formed ▁in ▁the ▁Italian ▁Naval ▁Academy ▁of ▁Liv orno , ▁where ▁it ▁came ▁out ▁on ▁October ▁ 1 8 9 0 ▁with ▁the ▁degree ▁in ▁elect rical ▁engineering . ▁ ▁He ▁took ▁part ▁in ▁the ▁ 1 9 1 1 – 1 9 1 2 ▁Ital o - T urk ish ▁War . ▁During ▁World ▁War ▁I ▁he ▁fought ▁in ▁sub mar ines ▁particip ating ▁in ▁various ▁military ▁operations ▁in ▁the ▁Mediter rane an ▁sea , ▁for ▁which ▁he ▁was ▁decor ated ▁with ▁two ▁" Sil ver ▁war ▁med als " ▁in ▁ 1 9 1 5 ▁and ▁in ▁ 1 9 1 8 . ▁ ▁V inc en zo ▁De ▁Fe o ▁became ▁Admir al ▁on ▁December ▁ 2 0 , ▁ 1 9 3 4 . ▁ ▁He ▁was ▁even ▁a ▁clever ▁techn ician ▁who , ▁only ▁in ▁" Ital ian ▁Marina ", ▁bo asted ▁pat ents ▁of ▁five ▁special izations : ▁under water ▁weapons , ▁chemical ▁explos ives , ▁electron ics , ▁te legraph y , ▁ball istics . ▁He ▁invent ed ▁a ▁peculiar ▁gy ros cope ▁called ▁g