Gauntlets (Mastercrafted): Derelict Castle, Deviant Fiend

On the main island of Ard Skellig, locate the settlement of Boxholm, which has been recently devastated by a powerful Fiend. The entity in question is Morvudd, found lurking on the health inside a small derelict castle above the settlement. Slaying him is part of Contract: Missing Son.

Whether you engage in a battle with Morvudd or not, the chest you seek is nestled on the top of the wall connected to the largest piece of the ruin, on the western side of the derelict castle.