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