Early medieval Zadar is the focus of this case study which explores the interaction between international and local factors which contributed to Zadar becoming a capital of a Byzantine province in the late eighth and the ninth century. The chapter examines the local impact of the renovation of Byzantine administration in that period and the relationship between this development and the local Church. Bishops of Zadar tried to use a favourable moment in such a political context to claim the title of archbishops. The study also looks at the interaction between Zadar and its hinterland, populated by Croats, and the new religious centres that served them. Zadar survived the collapse of post-Roman Dalmatia and this Late Antique civitas became an early medieval provincia loosely dependent on the imperial administrative system.

The Venetians had a substantial stake in the local trade of the Byzantine empire and provided essential naval assistance. The chrysobull of 992 was a confirmation of existing privileges and practices. The same was true of the chrysobull traditionally dated to 1082, which Alexius I Komnenos granted to the Venetians. His son and successor John II refused to ratify the chrysobull while Manuel I Komnenos also sought to bring the Venetians to heel and adopted a bolder strategy. He challenged their control of the Adriatic and in 1171 interned Venetians resident in the empire and seized their property. The Venetians survived only because they had the Adriatic to fall back on. Venice derived its basic strengths from the resources of the northern Adriatic, which allowed them to equip formidable fleets which, in turn, helped them to dominate the Adriatic and to further their interests in the Aegean and Eastern Mediterranean. Despite the frictions, the Venetian patriciate understood that their interests were best served by effective Byzantine government, which guaranteed the security of the seas.

This study focuses on Ravenna during the period from its fall into the hands of the Lombards in 751 to the decline of Byzantine power in the West from the mid-eleventh century. It argues that Ravenna shared common features with a number of other cities in the upper Adriatic, for example Comacchio, Venice and Zadar. The city maintained its earlier economic and artistic ties with Istria and Dalmatia, but also with Constantinople. The ties to Byzantium were based on admiration, nostalgia or identity and were used as part of strategy of resistance to threatening outside forces. However, the increasing dominance of local landowning elite led to the local autonomy and the strongest Byzantine influence remained the social and cultural cachet of the empire.