Young Brunette Girl With Blue Eyes Reveals Her Hold-ups With Little Blue Flowers On The Antique Royal Chair

The specific composition of royal families varies from country to country, as do the titles and royal and noble styles held by members of the family. The composition of the royal family may be regulated by statute enacted by the legislature (e.g. Spain, the Netherlands, and Japan since 1947), the Sovereign's prerogative and common law tradition (e.g. the United Kingdom), or a private house law (e.g., Liechtenstein, the former ruling houses of Bavaria, Prussia, Hanover, etc.). Public statutes, constitutional provisions, or conventions may also regulate the marriages, names, and personal titles of royal family members. The members of a royal family may or may not have a surname or dynastic name.
In a constitutional monarchy, when the monarch dies, there is always a law or tradition of succession to the throne that either specifies a formula for identifying the precise order of succession among family members in line to the throne or specifies a process by which a family member is chosen to inherit the crown. Usually in the former case the exact line of hereditary succession among royal individuals may be identified at any given moment during prior reigns (e.g. United Kingdom, Sark, Nizari Ismailis, Japan, Balobedus, Sweden, Benin Empire) whereas in the latter case the next sovereign may be selected (or changed) only during the reign or shortly after the demise of the immediately preceding monarch (e.g. Cambodia, KwaZulu Natal, Buganda, Saudi Arabia, Swaziland, Yorubaland, The Kingitanga). Some monarchies employ a mix of these selection processes (Malaysia, Monaco, Tonga, Jordan, Morocco), providing for both an identifiable line of succession as well as authority for the monarch, dynasty or other institution to alter the line in specific instances without changing the general law of succession.
Some countries have abolished royalty altogether, as in post-revolutionary France and Russia.