Hereditary monarchyA Hereditary monarchy is the most common style of monarchy, and the form that is used by almost all of the world's existing monarchies.
Under a hereditary monarchy, all the monarchs come from the same family, and the crown is passed down from one generation to the next.
For example, when the king or queen of a hereditary monarchy dies, the crown will usually be passed to his or her eldest child. When that child dies it will be in turn passed to their eldest child, or a brother, cousin, or other relative.
Compare elective monarchy.