Helm of Yngol

The Helm of Yngol is a unique Ancient Nord Helmet found in. It is similar in appearance to the helmet that Draugr Deathlords normally wear, aside from the horns being slightly shorter and bulkier.

Acquisition
The helm can be found on Yngol's remains within the throne room of Yngol Barrow. The helm is guarded by a ghost called Yngol's Shade.

Enchantment
Increases Frost Resistance by 30%

Trivia
The Helm of Yngol belonged to Ysgramor's son, Yngol, who was killed at sea along with his crew by Sea-Ghosts as described in Yngol and the Sea Ghosts.

Bug

 * When the player goes to pick it up, the helm may be invisible, and only the skull of Yngol can be seen. Picking it up makes the rest of the skeleton appear.
 * There is a known bug which seems to occur if you have accepted the quest to fetch the Helm of Winterhold for the Jarl of Winterhold prior to entering Yngol Barrow. The bug replaces Yngol's Shade with a Draugr Deathlord or Dragon Priest and completely removes the skeleton and the helmet with it. It also causes the door in Yngol's final chamber to remain shut.
 * To fix this bug on the PC, before entering Yngol Barrow, type "setstage Favor158 20" in the console, which removes the Helm of Winterhold quest, fast travel to, enter, and complete Yngol Barrows, which should be unbugged and the Helm of Yngol should appear, then returning to Jarl Korir to get Helm of Winterhold quest again.
 * Alternatively, you can finish quest for Helm of Winterhold, then type "resetinterior YngolBarrow01" in the console to reset the latter half of the dungeon and you should find the skeleton with the Helm of Yngol in its rightful place with the shade protecting it.

Appearances
The Elder Scrolls V: Skyrim