Who is the pope who decreed that his corpse should be bathed in wine?

I have not heard that one before... but to be honest, it smells like urban legend.

I've googled it several ways and even asked some friends who are history gurus... I'm finding nothing about it.

http://www.babbonyc.com/winepicks-orvieto.html
I found this. According to this source it was pope Gregory XVI