Sim Models, Females, Males: King Radhamanthos and the royal family – KyriaT’s Sims 4 World.
The King is indisputably the head of the kingdom and the family. But in practice, it is the Queen who controls the court and the family’s duties and privileges.
They are the Royal Family of Willow Creek, and if you want to you can use one of the Royalty mods to enhance your gameplay, but you can perfectly well play the family without any mod.