[5] Placed within the municipal limits to the southwest of the town, El Cerrón archaeological site was a Carpetani settlement.

[6] Illescas was acquired by Alfonso VII from the Bishop of Segovia in exchange of Aguilafuente and Bobadilla.

[7] In the 14th century, the inhabitants sought to free themselves from the ecclesiastical yoke, which was however confirmed by the Crown in 1329, although the monarch retained control over the morería and the judería.

[11] By the 15th century, Illescas was a walled town that enjoyed an important marketplace and levied a gate tax (from which Madrilenians were exempted).

[16] Thanks to the location, communications and available land, Illescas became a major logistics centre in Spain by the early 21st century.