guelph
Guelph (noun) means In medieval Italy, a supporter of the Pope in the long conflict against the Emperor and his allies.
Etymology
The word came into English from Italian guelfo, which traces back to Middle High German Welf, the name of a Bavarian dynasty. Welf II, Duke of Bavaria, inherited possessions including Tuscany, Ferrara, Modena, Mantua and Reggio from his Italian wife, the Countess Matilda of Tuscany — lands that played a part in the Investiture Controversy. Because the Welf dynasty backed the Pope in that dispute, the Pope's supporters in Italy became known as Guelfi.