Mu 1048 Drogo akatungamira mushandirapamwe muCalabria kuburikidza nemupata weCrati, padyo neCosenza. Akagovera nzvimbo dzakakundwa muCalabria ndokupa munin'ina wake, Robert Guiscard, nhare paScribla kuti achengetedze kupinda munharaunda ichangobva kukundwa; Guiscard aizozvisiyira kune nhare paSan Marco Argentano. Nguva pfupi yapfuura akaroora mwanasikana wemumwe ishe weNorman, uyo akamupa 200 knights (achikurudzira mushandirapamwe wake wehondo muCalabria). Muna 1051 Drogo akaurayiwa nevakwikwidzi veByzantine uye akatsiviwa nemunin'ina wake, Humphrey. Dambudziko rekutanga raHumphrey raive rekutarisana nekushora kwepapa kune maNorman. Kubata kwevaNorman knights kwevaLombards panguva yekutonga kwaDrogo kwakakonzera kumukira. Munguva yekusagadzikana, John Fécamp, Abbot weNorman, akazoisiya kune nhare paSan Marco Argentano.
Drogo akatungamirira boka rokupinda muCalabria