The Crypt of the Madonna del Gonfalone (Our Lady of the Banner) is an underground country church located in the district of St. Euphemia in the municipality of Tricase, in the province of Lecce.
The crypt was excavated in the tufa between the ninth and eleventh centuries, providing a safe haven for centuries and an important place of worship. The settlement began as a monastery ("Laura"), built by Byzantine monks, to keep alight the sacred worship during religious persecutions. Later, it became a grancia (farm-convent), depending on the Abbey of Santa Maria del Mito.
The structure is built around a central square room, visible from the outside up with a belfry. Herein lies a small baroque altar with the painting of the Virgin and Child. The compartments of the Hypogeum, reworked several times over the centuries, are supported by nineteen octagonal columns.
Along the walls are traces of the surviving frescoes. Near the entrance there is a Crucifixion with the Virgin and St. John. The north wall retains the largest number of frescoes arranged in two different layers attributed to the sixteenth century or so. On the bottom layer, as well as two female figures, is probably represented the death of St. Bonaventure, which took place during the second Council of Lyons in 1274.
[Wikipedia]