Verdonese Common

Verdonese Common is in fact a constructed language, based on the native language of Verdon, Verdonese. The The Verdonese Empire created Verdonese Common based on their studies of creole-type languages and how people mix in their native languages to new ones to easily acclimate to them. As a result, Verdonese Common is incredibly easy to learn and though it contains enough elements of Verdonese to be recognizeable, it is very different gramatically.
The language has been a huge success, and in just two hundred years has become the preferred language for daily life across all of the Empire.