In the Vinony graph
Vinony files it under Country data templates of subdivisions of Italy, Country data templates with documentation subpage and Templates using TemplateData.
Vinony links it to 40 Wikipedia language editions.
~1 min read
Encyclopedic overview
Template documentation
See also: Flag of Emilia-Romagna
Excerpted from Wikipedia’s “Template:Country data Emilia-Romagna” article, available under the CC BY-SA 4.0 licence.