Question:
Who was the head of Besançon in Aug, 2015?

Context:
 Jean-Louis Fousseret is the head of the government of Besançon from Jan, 2014 to Jan, 2020. 
 Robert Schwint is the head of the government of Besançon from Jan, 1977 to Jan, 2001. 
 Anne Vignot is the head of the government of Besançon from Jan, 2020 to Dec, 2022.

Answer:
Jean-Louis Fousseret