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