


Twilight gets her own castle in the season four finale. Cadance and Flurry Heart live in the Crystal Empire Castle. At the end of the series, Twilight moves into that castle. Celestia then lives in the Canterlot Castle, along with Luna after her return. Big Fancy Castle: Celestia and Luna formally lived in a castle that was destroyed by Nightmare Moon.Flurry Heart is Cadance's daughter and Twilight's niece.Twilight doesn't have any direct relation to Celestia and Luna, but she is their adoptive niece's sister-in-law.Cadance and Twilight are sisters-in-law.This also means Flurry Heart is their adoptive great niece.

All There in the Manual states that Cadance is Celestia’s adoptive niece, so this therefore applies to Luna as well.Badass Family: They're both royalty and members of an extremely rare and powerful race.
