. ▁Following ▁this ▁victory , ▁Ad al bert , ▁assist ed ▁by ▁Duke ▁Hugh ▁of ▁T usc any , ▁campaign ed ▁against ▁Duke ▁The ob ald ▁II ▁of ▁S pole to . ▁During ▁this ▁campaign ▁his ▁forces ▁even ▁enc ro ached ▁on ▁Roman ▁territory ▁in ▁ 9 6 0 . ▁ ▁Pope ▁John ▁XII ▁asked ▁the ▁king ▁of ▁Germany ▁for ▁help ▁against ▁Ad al bert . ▁Otto ▁entered ▁Italy ▁in ▁ 9 6 1 , ▁while ▁Ad al bert ▁assemble d ▁a ▁large ▁army ▁at ▁Ver ona . ▁According ▁to ▁contemporary ▁sources ▁it ▁was ▁ 6 0 , 0 0 0 ▁strong , ▁although ▁this ▁is ▁an ▁obvious ▁ex agger ation . ▁Many ▁of ▁the ▁leading ▁noble ▁families ▁refused ▁to ▁join ▁in ▁the ▁defence ▁of ▁Italy ▁except ▁on ▁the ▁condition ▁that ▁Ber eng ar ▁ab d icate ▁in ▁favour ▁of ▁his ▁son . ▁This ▁the ▁elder ▁king ▁refused ▁to ▁do , ▁and ▁thus ▁Ad al bert ▁was ▁unable ▁to ▁effectively ▁opp ose ▁the ▁German ▁invasion . ▁Otto ▁proceeded ▁uno pp osed ▁to ▁Milan , ▁where ▁he ▁was ▁crown ed ▁king ▁by ▁Arch bishop ▁Wal bert ▁in ▁November , ▁and ▁from ▁there ▁to ▁Rome , ▁where ▁he ▁was ▁crown ed ▁em peror ▁by ▁the ▁po pe ▁on ▁ 3 ▁February ▁ 9 6 2 . ▁Ad al bert ▁and ▁Ber eng ar ▁went ▁into ▁hiding . ▁ ▁Ex ile ▁After ▁his ▁imperial ▁coron ation , ▁Otto ▁bes ie ged ▁the ▁various ▁for tr esses ▁loyal ▁to ▁Ad al bert ▁and ▁Ber eng ar .