Calle de Aquilino Domínguez
Bears the first name and surname of an Aquilino Domínguez of whom no record has been documented.
The sign recalls an Aquilino Domínguez, but no known source explains who he was or why Madrid dedicated this street to him. Neither the reason for the tribute nor any biographical detail tying it to a real person has survived.
The street is short and belongs to Cuatro Caminos, one of the six neighbourhoods of the district of Tetuán, which grew as a working-class outskirt with subdivisions and low houses labelled with names of very mixed origin. In that context a sign with no biography behind it is easy to understand.