This paper deals with the political situation in Dubrovnik at the end of the 19 th century. The introduction presents general political conditions in the city in the second half of the century, that is, the period when the People's Party is in power in the city municipality. It includes both the Autonomous Party and the Serbian Party, which together won the 1890. elections. The next chapter explains the phenomenon of Serb-Catholics that contributed to the popularity and influence of the Serbian Party. The growth of the Serb-Catholic movement from its roots to the conquest of the Dubrovnik municipality is described. Furthermore, the work deals with Frano Supilo and through his childhood and youth follows his ideological development, which takes place parallel to the rise of young Party of Rights. Supilo is profiled as their leader and describes their political activity and work through the magazine Crvena Hrvatska. Finally, the work is concluded by reviewing the struggle for municipal authority between the Serbian Party and the Autonomous Party on the one hand, and the Party of Rights and the People's Party on the other, which ends with the return of the municipality to Croatian hands