When the city of Groningen developed an important position in the Ommelanden , a switch from Frisian to Saxon occurred , although it was not a complete switch because there are many Frisian influences in the '' new '' Groningen language .
When the city of Groningen developed a mighty position in the Ommelanden , a switch from Frisian to Saxon occurred . 
 Although it was not a complete switch because there are many Frisian influences in the '' new '' Groningen language .