The article explores the historical figure of Saint Donatus, who was born in the latter half of the 8th century in a notable Zadar family. Recognized as a significant bishop of Zadar, he is featured in the work of the Jesuit Daniele Farlati, who documented the ecclesiastical history of the region in the 18th century. Farlati's writings, particularly in 'Illyricum sacrum,' help highlight the importance of Donatus in the Christian history of Dalmatia.

Furthermore, the text references Einhard, the Frankish historian, who recounts Donatus's role as an envoy from Dalmatian cities to Charlemagne in 805 AD. This mission illustrates the political and ecclesiastical ties between Zadar and the Frankish Empire at the time. The narrative delves into the interactions and connections forged during that period, emphasizing Donatus's place in both spiritual and civic contexts.

Overall, this story not only sheds light on the life of a pivotal religious leader in Zadar's history but also reflects the broader historical significance of the city during the early Middle Ages, positioning Donatus as a figure that encapsulates the confluence of faith and governance in a developing region of Europe.