Show with a princess knight named Sara

Princess Sapphire is a girl raised as a Prince. Through the mischief of an angel, the princess is born with both a girl's and a boy's heart. Since there is no boy successor in her kingdom, Sapphire is raised as a boy, but evil ministers try to reveal her secret. Unable to put up with the kind of vicious conduct prevailing in the kingdom, Sapphire disguises herself as "Princess Knight" and wields her sword of justice.

Sara's dream of finding the perfect mate is realized when boyfriend Daniel proposes marriage, but there is one tiny hitch. It turns out he is the real-life prince of a small European monarchy, and his marriage requires the approval of his royal parents. Commoner Sara will have to do more than simply impress the in-laws-to-be. If she wants to become Daniel’s wife, she’ll have to prove she’s got all the makings of an honest-to-goodness princess.