The son of a king is typically given the title of prince.

He may also hold other titles depending on the specific traditions and customs of the kingdom, such as:

• Crown Prince: The direct heir to the throne.
• Grand Duke: A title given to a male member of the royal family in some European countries.

The specific titles and their significance can vary widely depending on the specific monarchy and its history. For example, in the United Kingdom, the eldest son of the monarch is traditionally granted the title of Prince of Wales. The Royal Family