I am doing a quest for martin where I need to find him a Deadric artifact. I have the skeleton key, azuras star, and spellbreaker shield. He will not take the shield which is what I want to give him. There is one last shrine that I can find which is Sanguine. I need cyrodilic brandy to summon Sanguine though. Where do I find this brandy?
One of the store in the Imperial City sells it, its a potion...
Or, don't waste money on expenisive stuff, just steal it from a shelf in the throne room of the bruma castle. Make sure it's night :)
That's what I did... for the record that quest is hilarious!