On the withdrawal of the Milanese forces after the Peace of Sarzana in 1353, a civil war broke out between Guelphs and Ghibellines, between Borgo San Sepolcro and Città di Castello.
Following the Peace of Sarzana in 1353 and the departure of the Milanese troops, there arose a civil strife among the Guelphs and Ghibellines. This conflict took place between Borgo San Sepolcro and Città di Castello.