Complex sentence: The building's unusually large size, astonishing decorations, and long period of construction created the suspicion of corruption, which in 1912 led to a parliamentary inquiry and gave rise to the popular nickname of "Palazzaccio".
Split into simpler sentences: The building's unusually large size, astonishing decorations, and long period of construction created the suspicion of corruption. Relazione e allegati (Rome: Tipografia del Senato, 1913) The affair gave rise to the building's popular nickname of "Palazzaccio".