The Portuguese Civil War occurred between 1828 and 1834, primarily as a conflict over the throne of Portugal. It was fought between supporters of Dom Miguel, who sought to establish an absolute monarchy, and those loyal to Dom Pedro IV, who advocated for a constitutional monarchy. The war was marked by a series of battles and shifting alliances. The conflict ended with the defeat of Dom Miguel and the establishment of a constitutional monarchy under Dom Pedro IV. This war significantly shaped Portugal's political landscape, leading to a period of instability and further conflicts in the following decades.