Shining Armor

Shining Armor is a male unicorn pony, Twilight Velvet and Night Light's son, Twilight Sparkle's older brother, Princess Cadance's husband, and Flurry Heart's father. He is the former captain of the Canterlot Royal Guard, serving under Princess Celestia and Princess Luna, and bears the title of prince as a result of his marriage to Cadance. He first appears in the two-part season twofinale alongside Cadance. In the season three premiere, he and Cadance are appointed as the rulers of the Crystal Empire.

In When the Cold Breeze Blows Away, even though he has been framed for destroying Cesusserite Gem of  the dragons of Gerasecia  by a Belkan Grey Men pony member disguised as him, he would join the Grand Alliance since his wife was misses both of Twilight Sparkle and Princess Celestia