To this route we called Route to him of "la Unión" because it is going to take to us to know, more or less, the part of the town that began to build when the medieval enclosure was insufficient to lodge the demographic explosion that meant in Cossonda the Treaty of "la Unión", in which were united in 1647 several farmers, having bought mules, fields, etc... soon to rent them "los unidos", and meant a growth of population of 71 houses that was in 1646 to 120 in 1709 and to 300 in 1771.

Scheme of "la Union" Route . Push here to see the Tourist Plane of Cossonda (Castilian version)
Said it we began, like in all these routes, "la Plaza’l Mercáu” [1], officially Plaza de España and that since already we have said in the Medieval Route began being a small cemetery, "el Fosal de San Juan" and was urbanized in the 16th century for market outdoors and in this time also the public executions become general in this place, since it was the amplest place and it fitted much people.

“La
Plaza’l Mercáu” in 1950
In "la Plaza’l Mercáu" still we can appreciate the old inn, of the 16th century, and some traditional eaves in the houses, in addition to being able to imagine to us where now is "la Casa Lugar", the yellow building that for of City council, the old hermitage of St. John that in that time was when its maximum splendour shone, until the new church in 1686 was constructed.

“La Posada”
Also we have the walls of defense of the river with the original foundations of end of the 17th century, not therefore the wall, demolished several times by the river, and a small bridge to walkers, "el Puente la Plaza", vestige of first, of end of the 17th century also.

“El Puente la Plaza” in 1890
We were placed right to the other end of "la Casa Lugar", where enters “la Carretera”, officially Paseo de Don Fermín Gutiérrez Muro, part before closed of "la Plaza’l Mercáu" and opened at the beginning of the 20th century, when the highway was constructed that gives access to Cossonda.

“La Casa la Plaza” in 1890
We followed by this one the shade of the maple-trees appreciating some house by right hand with certain city-planning value.