Atienza is a municipality located in the province of Guadalajara, Spain. According to the 2006 census (INE), the municipality has a population of 437 inhabitants.There were ancient Celtiberian settlements in the Cerro del Padrastro.GeologyAtienza, as well as the area surrounding it, is located in the transition zone between the Sistema Ibérico and the Sistema Central.Notable peopleJuan Bravo was born in Atienza.