Yep. 2 different parties, both with a Faerie Ninja created and developed specifically for the Cane of Corpus.Both parties got the Cane from the Don.
It's definately a randrom drop though. The first party got it after only one fight. The 2nd party had to re-load 2 times before getting it.
If you truly want it, save before taking the Don on, then re-load until you get it from him. Re-loading also gives you the chance to try different tactics to bring the Don down faster.
Spence