Long ago in my Skyrim characters growth, Lydia was my companion, and then I entered a dungeon and it was dark, and I missed with my sword and Lydia died, but I didn't realise for sometime afterward that she wasn't with me, so I had to go back and search, and she was dead in a dark part of a tunnel, so it was a long way back to be able to go to previous save, so I just let it be.
Sometime later when I got married, she turned up at my wedding dead so she's actually dead in laying on the floor just inside the door of the Temple in Riften.
I have been issued a quest from someone in the mages college to go collect an item from her.
Is there a way to complete or cancel the quest? I have the PS3 version, so console solutions will not work.