Storyfag
Perfidious Pole
You can get it again in TW3 DLCTW2 itemization: Throw Aerondinght to the bin in the end of Chapter 1.
So it is a unique priceless artifact the Lady of the Lake Knights you with, then vendor trash replaced in the first random swmp area you find yourself in, then again... something (under a junk leveled loot system).
I salute the consequence and consistency...
Akshully, the Aerondight from TW3 levels up with you. It stays awesome.