👉 A dynasty is a political system in which a single family or individual, often an emperor, regnant over multiple realms, maintains power and authority. Dynasties are usually based on hereditary succession, where the monarchs pass down their titles to their descendants. They are typically ruled by a monarch who can rule only for a short period of time before being replaced by another king or queen. Dynasts often have a long history of political stability and may be referred to as "long-lived" dyn