Definition of gonfalons:
(n) :
A standard or ensign, consisting of a pole with a crosspiece from which a banner is suspended, especially as used in church processions, but also for civic and military display.
(n) :
(heraldry) Alternative form of gonfanon. [(heraldry) A banner with three "tails", typically with the middle one longer than the others, and three loops at the top representing where it would have been attached to a pole.]