sentences:  The unending dispute between them came to a head in 1618 with the outbreak of a religious war, which had disastrous consequences for the local population.After Emperor Ferdinand II's counterstrike and Protestant Elector Friedrich V's flight into exile, the Emperor transferred the title of Elector Palatine to the Bavarian Duke Maximilian I.His general, Tilly, conquered great parts of the Electorate of the Palatinate and Palatinate-Zweibrücken in 1620, forcing subjects there to adopt the Catholic faith.