Herebane's Fortress is a unique Elven shield which was cut from The Elder Scrolls V: Skyrim before release. Herebane's Fortress bears similarity to the name of the character Herebane Sorenshield, who was also cut from the final game.
Acquisition[]
The item cannot be obtained without using console commands.
Smithing[]
It can be upgraded with a Refined Moonstone at a workbench and also benefits from the Elven Smithing perk, which doubles the improvement.