Its name originated as a rallying cry during the Battle of Weinsberg, and this group later supported French king Charles VIII.  
In the 19th century Vincenzo Gioberti's "On the Moral and Civil Primacy of the Italians," was an exposition of a group that appropriated the name of this faction (*).  Its name originated as a rallying cry during the Battle of Weinsberg, and this group later supported French king Charles VIII.  By 1300 its members had split into "white" and "black" factions over the influence of Pope Boniface VIII in Florence.  Traditionally referring to supporters of the Papacy, FTP, give this term which was most likely an Italian corruption of a German family name and rival to the Ghibellines.
In the 19th century Vincenzo Gioberti's "On the Moral and Civil Primacy of the Italians," was an exposition of a group that appropriated the name of this faction (*).  
Guelphs [Accept "Neo-Guelphs" until *]