Stanley Mordaunt Leathes, The Cambridge Modern History, Volume 2… (1904)
“ He seemed to have brought for once in her troubled history unity to Italy. That so much had been achieved appears at first sight due more to good fortune than good management. Again and again, above all at Pavia and at Naples, luck had declared in his favour when everything seemed to promise disaster. But good fortune seldom comes where it is wholly unmerited. Though always unequal in intellect and resources to the gigantic tasks that were imposed upon him, Charles had shown perseverance almost adequate to his needs. ”
