Legend tells the tale of the apparition of the Virgin Mary above a honeycomb in the place where the shrine of Nuestra Señora de Dulcis now stands in her honour.

Dulcis quickly became the main pilgrimage destination of people living in the environs of the middle stretch of the River Vero attracting pilgrims from Alquézar and the surrounding hamlets (Buera, San Pelegrín, Radiquero, Asque and Colungo) Favours would be asked of the Virgin who performed miracles to those who trusted in her powers.

She cured invalids, saved men from dying of thirst when the river ran dry and freed children from terrible diseases such as scrofula (an inflammation of the glands and symptomatic of the onset of other illnesses, fatal at the time, such as tuberculosis.)

The fervour that arose at this time for the image of the Virgin of Dulcis resulted in her performing wonders for the faithful, many of which were recorded in the 18th century by Father Faci and by Tones y Abizanda;

“The miracles that Our Lady have performed are many … A pilgrim so impeded that he could hardly seek food visited the Virgin and immediately regained health and left his hat and crutch as testimony. A 12 year old girl, crippled since birth, was made healthy during the mass her parents celebrated for her. A 14 year old crippled boy, who could find no human remedy, asked his parents to take him to the Dulcis chapel, and then, when they took him to hear mass in the chapel, got up, took the missal and helped the priest throughout the rest of the mass. A soldier wanting to desecrate the holy temple of Maria, tried to enter mounted on his horse, but the animal was struck immobile outside and would not enter; so instead he was miraculously humbled, showing the Beast to be more rational than Man, and he more ignorant than his horse of the worship of the Holy Temples.” The same Tones y Abizanda tells in Lumen of the miracles that the Virgin performed for him. Firstly she freed him, and later his sister, from an infant disease of the times known as scrofula. Also, having fallen in the river and in danger of drowning he appealed to Our Lady of Dulcis who brought him out of his trance and saved him. Finally, “…When I was Prior of the said sanctuary and was convalescing from an illness, I had a pin, big like a sewing needle and with a large head, for clearing my own head. I put it up one of my nostrils and breathed it in. I called upon the Virgin Mary and it gave me no pain and did me no harm. As far as I know the pin hasn't come out.”

In times of drought it was common to take the statue of the Virgin on a procession to appeal to the skies for rain. These religious acts feature in the documentation of the shrine and were collated by an 18th century prior. “I said nothing, if it was to rain or not because of this diligence. We can believe it would rain because in all the times we have been to her house and shrine to worship her….she has saved us every time.” It was the miracles and the wonders that the Virgin performed for her most faithful devotees that brought thousands of people to this shrine every year in September. Indeed there were so many pilgrims that the villagers from Buera had to ask the bishop to change the date of the pilgrimage from September to May because the visiting people would eat grapes from vines in the fields, the only sustenance of the local people.This tradition is still alive and well and on the second Sunday of May the villagers of Alquézar and the surrounding hamlets walk to the chapel in procession to worship the statue of Our Lady of Dulcis.

In the nearby olive oil mill, known as the Torno de Buera, olive oil held in tanks was moved to narrow necked recipients for transportation using tin funnels. They were then left to drain in a sink and the oil that accumulated there was donated to the Dulcis shrine to light the Virgin’s lamp. Tradition stated that to anoint the tongues of children with oil from the lamp that burnt next to the altar would help them to talk.

Awaiting discovery in the mountains close to Estadilla is the Shrine of the Virgen de la Carrodilla. This is dedicated to the Virgin Mary, who is said to have appeared to two charcoal burners who had gone to cut wood in the mountains. She appeared above their cart and asked them to build a shrine in which to worship her. The men told their story to the villagers upon their return but nobody believed them, if fact they were laughed at by many. The men were unsure what to do so they returned to the same spot in the mountains to ask for guidance. The Virgin Mary performed a small miracle to help them in their quest; she stuck the hand of one of the men to his cheek in a way that no human force could separate it. Upon seeing what had happened the villagers believed the story and construction of the chapel went ahead.

As the statue of the Virgin Mary stands on a cart some people have linked the origins of her apparition, and subsequent devotion, to the Christianization of an ancestral pagan cult devoted to the God, Cybele. 

In the year 1650 according to tradition, a pilgrim was given shelter in Casa Castro and in return for the hospitality received he cured a sick child who lived there. After becoming known as San Antonio de Padrua, he awarded the family the power to cure. As a consequence, problems with bones and joints became known locally as the mal de los Castro (the Castro ills) as it was to this family the locals turned for a cure.

In fact, a local saying used as a threat is, “I’ll give you such a kick you’ll need to go to the Castro’s.”

This chapel is located on the path that connects the A-1225 road with Laperdiguera.

The San Roman shrine has been closely linked to the livestock track since its origins due to its location close to the migratory route that links Broto in the Pyrenees with Mequinenza in the south. Large flocks of animals have traditionally crossed the Somontano territory; on their way to the Pyrenean pastures to spend the summer months and back down to the southern plains in search of gentler winters. The shrine was a much frequented stopping place for shepherds travelling this route, many of whom would spend the night in the house attached to the chapel, which took on the role of an inn. There was also a livestock holding pen to the side of the building for the migrating animals.

Until recently, the chapel was used for exorcisms. It is said that the possessed would spend various days tied to a bed in the inn, wracked with screams, until the devil left their body. It is currently used for the celebration of occasional but well-attended pilgrimages.

The large 18th century building was built in the Baroque style from masonry reinforced with ashlars at each corner. The Latin cross layout incorporates a single nave divided into three sections; the section at the west end houses a choir perched on a flat slab floor and the middle section is covered by a barrel vault with lunettes, which opens up into two side chapels. The third section boasts a large dome supported by pendentives, the windows of which are currently blocked. This part of the nave has large semi-circular arches that lead into two side chapels, which, together with the vestry, provide a sensation of harmony and balance.

The vestry is covered with a barrel vault with lunettes and is decorated with vividly coloured paintings that represent the exaltation of Christ (IHS), the Virgin Mary and San Ramon. The remains of mural paintings can be seen in other parts of the church.