 The city was on the high road from Emerita (modern Mérida) to Caesaraugusta (modern Zaragoza), 22 M. P. northeast of Complutum (modern Alcalá de Henares).The town of Guadalajara was founded in the 8th century, in the time of the Emirate of Córdoba.It was officially known as Madinat-al-Faray in the 9th and 10th centuries.