During the 15 th century, the Jewish quarter of Lorca was located under the protection of the buttressed walls of the castle. The archaeological excavations have allowed proving that there was a large synagogue and eleven houses, which opened out onto small piazzas, narrow streets and pathways over the wall.

The houses have many different sizes, always adapted to the steep slope, and they usually include small patios, elevated spare rooms, spaces with brick benches built in the walls, storage areas for large earthenware jars, cabinets, cupboards, a kitchen and, exceptionally, a bathroom.

A series of documents traced back to the second half of the 15 th century has been preserved in several archives. These documents have permitted to have certain knowledge about some people who dwelled in this Jewish quarter, and who also carried out jobs related to commerce and farming, as well as other tasks inherent to a frontier city, such as tax collection and the freeing of captives.