Helm: All-Knowing Helm

Armour: All-Knowing Armor

Gauntlet: All-Knowing Gauntlets

Leggings: All-Knowing Greaves

Where To Find: 

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

Acquired by emerging victorious against Sir Gideon Ofnir, the All-Knowing, located in Leyndell, the Ashen Capital.