Note: Do not rely on this information. It is very old.
Arcosdela Frontera
Arcos de la Frontera, a town, and formerly a duchy, in the province of Andalusia, Spain, on the river Guadalete, 30 miles from Cadiz. Thread, ropes, and leather are the principal manufactures, and it is the first place in which leather-dressing was practised in Andalusia. There are several other towns named Arcos in Spain and Portugal.