Dominant ideology refers to the set of beliefs, values, and norms that are widely accepted and upheld by a society or group, often serving to maintain the status quo and justify existing power structures. In the context of political systems, it shapes the way individuals perceive their roles within society and influences their actions and decisions. This concept is particularly significant when examining European Conservatism and the Concert of Europe, as it reflects the underlying principles that guided the political landscape during the 19th century.