Calle de Trueba Fernández
A street whose name evokes someone surnamed Trueba y Fernández, of whom no reliable record survives.
The sign joins two surnames with the conjunction that once separated the paternal from the maternal, the way people were named in 19th-century Spain. Everything points to someone called Trueba y Fernández, but who that was has not been reliably documented, and the identification with similarly named writers does not hold up.
The surname comes from a place in the north: the Trueba river and pass, on the line between Burgos and Cantabria. The street sits in the Hispanoamérica neighborhood, a short stretch a car crosses in seconds, keeping behind its sign a name of which only two surnames survive.