Ravenrun is a shire in the Aurith Empire. Governed by House Cloak from their seat of power, Ravenrun, they rule over the Northeastern portion of the Aurith Empire. Ravenrun was once ruled by the city of Drakeholdholm, but lost it in the Fledgling Wars to the Aurith Empire. Ravenrun is the most recently conquered dominion and many alive are still bitter about their land being conquered.

The Continent of Aurin (where you can find the castle)
https://www.planetminecraft.com/project/the-continent-of-aurin/

To buy the map (the whole adventure map, see previous link)
19.99 USD
https://building-with-sven.tebex.io/