 If you liked
Code Geass: Hangyaku no Lelouch
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 ...then you might like
Seirei no Moribito
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Both series are about about an exiled prince who struggles to overcome many problems and return to some form of his old life as royalty. Both princes meet many new people on their journeys who either help them out or try to hurt them. Each also has a woman who is sworn to protect him, and a mother they love dearly.
Both series deal with the supernatural and have great fight scenes, and come to amazing climaxes. They also both take place in Japan in alternate universes where characters sometimes enter other dimensions.