Dom Perignon is named after a A. Benedictine monk. He was a monk at a Benedictine abbey, and he loved making wine. He was one of the first people who came up with new wine-making techniques, which is one of the reasons why this champagne was named after him, even though he had nothing to do with actual champagne.
I think they adopted Corinthian order, for this type of orders can be seen on many cathedrals around Europe including those in France, Malta (Valletta), etc.
