When we talk about royal and noble styles, we're actually talking about the way we address people with special titles like kings and queens, princes and princesses, dukes and duchesses, and counts and countesses. A "style" is a special way of referring to someone that shows how important and respected they are.
For example, when we talk about a king or queen, we use a special style that reflects their high rank. We say "Your Majesty" when we address them directly, and "His/Her Majesty" when we talk about them to other people. This special style shows how much respect we have for the king or queen.
Princes and princesses have their own style too. We say "Your Highness" when we talk to them directly, and "His/Her Highness" when we talk about them to other people. This special style recognizes that they're very important people in their own right, even though they're not yet king or queen.
Dukes and duchesses are even lower in rank than princes and princesses, so we have a simpler style for them. We say "Your Grace" when we address them directly, and "His/Her Grace" when we talk about them to other people. This special style recognizes that they're important people, but not as important as kings and queens.
Counts and countesses are the lowest ranking nobles, so they have the simplest style of all. We say "Lord" or "Lady" when we address them directly, and "The Right Honourable" when we talk about them to other people. This shows respect for their rank, but doesn't give them a special title like "Your Majesty" or "Your Highness."
Overall, royal and noble styles are a way of showing respect for people with special titles, and recognizing their high rank in society. They're a part of our culture's history and traditions, and they help us understand the different levels of importance that people can have.