The thesis examines sociopolitical events that occurred in Vukovar and its surroundings during the revolutions of 1848 and 1849. Unlike previous historiographical works, which often explore this period and events from the perspective of Zagreb, this thesis puts the focus on the city of Vukovar and its citizens. A larger part of this thesis is dedicated to the domestic and foreign policies of the city of Vukovar and the county of Srijem, that is, on the debates and decisions made at the meetings of the Srijem County Assembly and the reactions of the Vukovar citizens to the decisions of their town's and county's leadership. The conflicts between the people's and magyaron parties, latter led by the magyaron and first county sub-prefect Josip Žitvaj, were in full motion until the end of August 1848, when Žitvaj faced his final political downfall and when, soon after, an open war with Hungary started. Political conflicts were primarily centered around the question of language, which was at the time considered to be the main characteristic of a given nation. With magyaron political power weakening in Vukovar and Srijem County, the croatian-serbian struggle for Srijem began and eventually incresed. People advocating for an all-serbian Srijem referred to Article VII of the Croatian Parliament from 1848, which they often misinterpreted, for them to, in the end, as the cause for all their misfortunes and for the failure of the proto-Greater Serbia project blame ban Jelačić. Among the first victims of the all-serbian Srijem, or the proto-Greater serbian idea, was Vukovar's count Hugo Philip Karl von Eltz, about whose death, circumstances, and testimonies of his murder we dedicated an entire chapter in this thesis.