In the mid-fourteenth century, as a result of urban expansion, a new outer wall was built and completed around 1370, in the reign of King Fernando, what explains the fact of being called "Ferdinand Walls".

The walls began to be demolished since the second half of the eighteenth century to make way for new streets, squares and buildings. Most of the wall has been demolished in the late nineteenth century.

The surviving sections of " Fernand walls” were classified as" National Monuments" in 1926.