quality:correction
White and Black Guelphs

After the Tuscan Guelphs finally defeated the Ghibellines in 1289 at the Battle of Campaldino and at Vicopisano, the Guelphs began infighting. By 1300, the Florentine Guelphs had divided into the Black and White Guelphs. The Blacks continued to support the Papacy, while the Whites were opposed to Papal influence, specifically the influence of Pope Boniface VIII. Dante was among the supporters of the White Guelphs. In 1302 he was exiled when the Black Guelphs took control of Florence.

Those who were not connected to either side or who had no connections to either Guelphs or Ghibellines considered both factions unworthy of support but were still affected by changes of power in their respective cities. Emperor Henry VII was disgusted by supporters of both sides when he visited Italy in 1310.

In 1325, the city-states of Guelph Bologna and Ghibelline Modena clashed in the War of the Bucket, resulting in Modena's victory at the Battle of Zappolino, which led to a resurgence of Ghibelline fortunes. In 1334, Pope Benedict XII threatened people who used either the Guelph or Ghibelline name with excommunication.