At number 20 Via Laietana stands one of the most disturbing and decontextualized buildings in Barcelona. It is the Nervión Building, a glass and metal monster erected in the late 1970s, which houses the headquarters of an insurance company. Previously, the site had been occupied by a magnificent modernist mansion designed by architect Francesc Guardia Vidal, son-in-law of Lluís Domènech i Montaner. Beyond the poor taste of the man who had it demolished in 1977 to build the Nervión Building, what interests us is the ownership of the mansion itself, as it was the headquarters of the Papelera Española company in Barcelona, ​​a key industry founded by Nicolás María de Urgoiti in 1901.