FYI to Hawaiian players!

Quote:Surnames did not exist in ancient Hawaii. Early converts might adopt a Christian name and use their Hawaiian name like a surname. In 1860 Kamehameha IV signed the Act to Regulate Names. Hawaiians were to take their father's given name as a surname, and all children born henceforth were to receive a Christian, i.e. English, given name. Hawaiian names were transferred into middle names. The law was not repealed until 1967.

(Wikipedia)

Per Kayte this is a Muggle law, so would impact Muggleborn witches/wizards, but might not apply to those from wizarding families.