Thanks to this world map that shows the density of people with the surname Bresciani in different countries, you can get an idea not only of the popularity of the surname Bresciani in each country but also of the different migrations of people surnamed Bresciani.
The quantity of people with the surname Bresciani that we can find in each country can help us discern the origin of the surname Bresciani, as logic tells us that the place with the most people surnamed Bresciani will be the country or area of origin of the surname Bresciani.