Per Spelmann / Peder Olsen Kringlehaugen is a very famous figure in Norwegian fiddle music about whom there are many stories; many involving drink, ladies and at least one pawning of an instrument.

It's up for debate as to whether he is the eponymous character, adopted the nickname because of the song or it's a happy co-incidence. The internet is not a place to let the truth get in the way of a good story - so beware .. here's a page that touches on the topic :
http://hogfiddle.blogspot.co.uk/2011/09/there-really-was-per-spelmann.html

Whilst Per has 'Godfather' status - I've often heard it said that this is to the detriment of other equally (or more) accomplished and yet less well known musicians. Apocryphilia & Comedy songs are part of that narrative as well!