Every year on the 8th September, La Natividad de Nuestra Señora, the village of Iznájar celebrates the procession of its patron, the Virgin of the Mercy/Compassion, as part of its annual feria. Devotees accompany the enthroned Virgin, elegantly seated amongst candles and flowers.

The event is steeped in history. The brotherhood of Iznájar was founded in May of 1697 and was recognised and approved two years later by the holder of the diocese of Córdoba, Cardinal Salazar. Toward the end of the XVI century, the statue of Nuestra Señora de la Antigua became extremely popular amongst the Iznajeños (peoples of Iznájar) who went to worship her at the shrine, at that time located at the bottom of the town, La Vent. The statue is now known as Nuestra Señora de la Piedad, whose name is well documented in the XVII century along with the original name "Nuestra Señora de la Antigua". In the XIX century the statue became known as Nuestra Señora de la Piedad, however the original name was preferred by its followers.

The procession attracts hundreds of villagers, not only from Iznajar but also from the surrounding villages and towns, to join in the celebration and to follow the shrine carrying large wax candles on its route around the streets of Iznájar.

Traditionally, those that wished to repent on this day would carry out their penance by donating kilo blocks of wax to the church. It is not considered so practical or reasonable these days - repenters now adhere to more accepted practices, like placing a sum of money in the collection box or going to confession.