A royal house is like a big, fancy family tree that has special titles and jobs. They are called a "royal house" because they have a really important role in their country or kingdom. Think of it like playing pretend as one big family with special powers and everyone has an important job to do.
Each royal house usually has a king or queen who leads the family and has the final say-so. They have special rules they follow and traditions they keep. Sometimes other family members will have special jobs like being a prince or princess, or maybe they have to do important duties like attending meetings or planning celebrations.
The royal house is usually well-known and people from all over the world like to hear about them and what they're doing. Sometimes, important decisions that affect the whole country are made by the royal house, and they may have a say in how things are done.
The royal house is very special and they have a lot of history and tradition surrounding them. They are like the stars of a big play, but this is real life!