Complex sentence: Quebradillas is called "La Guarida del Pirata" (The Pirate's Hideout) in the old days before Quebradillas was a town this place was known to be a hideout for Pirates.
Split into simpler sentences: Quebradillas is called "La Guarida del Pirata" (The Pirate's Hideout). In the old days before Quebradillas was a town this place was known to be a hideout for Pirates.