In the adjacent Calle del Caeen, look for the well-head with weathered rope-marks that traditionally inspired Saint Isidore, the youngest of a sixth-century Visigoth duke's four saintly children, to argue the merits of perseverance.
The youngest child of a sixth-century visigoth duke was called Saint Isidore.
Isidore, the child of a duke, had been known as a sinner hundreds of years ago.