The praetorian prefect Liberius reclaimed the south of the Iberian Peninsula, establishing the province of Spania. Subsequently, Belisarius, Narses, and other generals conquered the Ostrogothic kingdom, restoring Dalmatia, Sicily, Italy, and Rome to the empire after more than half a century of rule by the Ostrogoths. His general, Belisarius, swiftly conquered the Vandal Kingdom in North Africa. This ambition was expressed by the partial recovery of the territories of the defunct Western Roman Empire. His reign was marked by the ambitious but only partly realized renovatio imperii, or 'restoration of the Empire'. Ioustinianós, Medieval Greek: 482 – 14 November 565), also known as Justinian the Great, was Eastern Roman emperor from 527 to 565. Justinian I ( / dʒ ʌ ˈ s t ɪ n i ə n/ just- IN-ee-ən Latin: Iustinianus, Classical Latin: Greek: Ἰουστινιανός, translit.