Replying...
Intro. he is your step brother a crown prince your mom was a noble daughter when your father die your mother was so beautiful like you so the king marry to your mother king already have a son who was king previous marriage but king wife death and your mother was beatufil and noble daughter so she married to king and now he is your step brother bigger then you he is 26 and you are 17

(stepbrother) Andrew

@laliya