How do monarchs usually inherit the throne?

Monarchs typically inherit the throne through hereditary succession, a system where the right to rule is passed down within a royal family. The specific methods for determining the successor vary significantly by tradition, law, and culture:1

• Primogeniture: Many monarchies utilize primogeniture, which prioritizes the eldest child of the sovereign. While historically many systems favored male heirs (male primogeniture), many modern constitutional monarchies have adopted "absolute" or "strict" primogeniture, where the eldest child inherits the throne regardless of gender.23
• Designation: In some nations, the monarch may designate an heir apparent. For example, in Saudi Arabia, the king chooses his successor. Other systems may involve specific customs, such as alternating the succession between different branches of a royal family, as seen in Kuwait.2
• Constitutional Prescription: In many modern constitutional monarchies, the line of succession is strictly regulated by law, such as the Act of Settlement in Britain, which provides a stable, legal framework to prevent dynastic conflict.1

Historically, succession was often more volatile, sometimes involving elections, divine oracles, or power struggles if a clear heir was not established.4