Saint George's Cross

The Saint George's Cross, also called the Cross of Saint George, is a red cross on a white background. In the middle ages, it became associated with Saint George.
It was first used during the crusades.
Nowadays, it is famous for being used as the flag of England but has been used in Northern Italy for many centuries and is the symbol of the cities of Bologna, Padua, Reggio Emilia, Mantua, Vercelli, Alessandria and Milan.
It is also a symbol of Catalonia, a region of Spain.