Hereditary monarchy is a form of government where a single ruler, known as a monarch, inherits their position through family lineage. This means that the throne is passed down from one generation to the next, typically within a royal family. Common examples of hereditary monarchies include the United Kingdom and Saudi Arabia, where the title of king or queen is usually held by the eldest child or a close relative. In this system, the monarch often holds significant power, although the extent of that power can vary. Some hereditary monarchies, like Sweden, have transitioned to constitutional monarchies, where the monarch's role is largely ceremonial, while elected officials handle governance.