The Princesses: 1. How old are Celestia and Luna? Over 1,500 years old (Discord ruled for a thousand years, but they could have been born during his reign), but less than 3,000. 2. How old is Cadance? 23-26 years old, about 5 years older than Twilight. 3. Were Celestia and Luna always alicorns, or did they ascend? Ascended. Celly was a unicorn, Luna was a pegasus.