Cadence is a pink, alicorn princess, formerly a pegasus (told in "The Crystal Heart Spell" book). Cadence is Shining Armours wife, and sister-in-law to Twilight Sparkle, whom she was also a foal sitter to when she was younger.

During her wedding, Chrysallis (this changeling queen) took over Canterlot and stood in Cadence's place at the wedding, sapping the love out of Shining Armour. With help from the elements of Harmony, Cadence was able to stop Chrysalis and take her place with Shining Armour.

From season 3 onwards, Cadence rules over The Crystal Empire alongside her husband, Shining Armor.

She is normally seen wearing a chest plate, crown with a purple gem and shoes, all of which are golden. When she was younger, she wore her mane up in a pony tail tied with a blue ribbon. Her cutie mark is the crystal heart