Vampire Royal Armor

The Vampire Royal Armor is a piece of light armor that appears in.

Location
It can be found on a shelf next to a coffin in Castle Volkihar Ruins during the quest Chasing Echoes. It can also be obtained from Harkon's ashes after he is killed during the quest Kindred Judgement.

Smithing
It can be upgraded with a piece of leather at a workbench and also benefits from the Advanced Armors perk, which doubles the improvement.