Question:
Who was the head of Alcalá de Henares in Sep, 2015?

Context:
 Javier Rodríguez Palacios is the head of the government of Alcalá de Henares from Jun, 2015 to Dec, 2022. 
 Javier Bello Nieto is the head of the government of Alcalá de Henares from Jul, 2012 to Jun, 2015. 
 Manuel Peinado Lorca is the head of the government of Alcalá de Henares from Jul, 1999 to Jun, 2003. 
 Bartolomé González Jiménez is the head of the government of Alcalá de Henares from Jun, 1995 to Jul, 1999. 
 Arsenio Lope Huerta is the head of the government of Alcalá de Henares from May, 1983 to Feb, 1987.

Answer:
Javier Rodríguez Palacios