This Obi-Wan Kenobi jibberish!

If you are trying to hide an evil jedi's twin children from him, there may be more prudent ways. Setting one up as the princess of an important planet isn't the best idea. While the royal family's undoubted ability to defend itself (except, perhaps, from superlasers) is a plus, the high profile is a huge liability. But placing the son in the care of his half-uncle on the same planet the father grew up on, and even keeping his last name, is probably a foolish move.