We looked into the real cost of running a medieval castle, and it turns out that the sticker price on such a large property might be the most manageable number in the whole equation. Here’s exactly how much it would cost to run a castle like Dragonstone today – without the dragons, of course. #HouseofTheDragon #HOTD #GoT – Disclosures: Included price estimations are for illustrative purposes only. Actual outcomes will vary. Investment management and advisory services are provided by Wealthfront Advisers LLC, an SEC-registered investment adviser. © 2026 Wealthfront Corporation.