Shining Armor

Shining Armor is a male unicorn pony and Twilight Sparkle's older brother. He is the captain of the Canterlot Royal Guard, serving under Princess Celestia and Princess Luna, and bears the title ofprince as a result of his marriage to Princess Cadance. He first appears in the two-part season two finale alongside Cadance. A blurb on one of the toy sets featuring Shining Armor says that he and Princess Cadance "lead the Crystal Empire together!"