Modern Parliamentary Democracy is a system of governance where the executive branch derives its democratic legitimacy from, and is directly accountable to, the parliament or legislature. This form of democracy emphasizes the role of elected representatives who make decisions on behalf of their constituents, promoting a more responsive and responsible government structure. It arose during significant political transformations in Europe, especially between 1648 and 1815, as states began to develop frameworks that balanced power and authority between monarchs and representative assemblies.