Possible Clues:

• Language spoken in parts of the south of France
• Demonstrated around lake in French region
• Like the farandole
• Established state's dialect
• Establish northern state from southern France
• Definitely show the scattered clan is French
• French language tested with computer-aided learning
• Frenchman demonstrated and shouted, getting led off
• Language shown conclusively (roughly speaking) to be superior to Latin
• Frenchman demonstrated about short measure