Helm: Nox Swordstress Crown

Armour: Nox Swordstress Armor

Gauntlet: Nox Bracelets

Leggings: Nox Greaves

Where To Find: 

(Click the link above to view the equipment and watch the getting video.)

The gloves and greaves can indeed be looted from the Nox Swordstress, Nox Priest, and Nox Monk common enemies in Nokstella, Eternal City.

However, the Nox Swordstress Crown and Armor pieces exclusively drop from Nox Swordstress enemies.