The Question and Answer section for The Spanish Tragedy is a great resource to ask questions, find answers, and discuss the novel.
Revenge Tragedy is a style of drama, popular in England during the late 16th and 17th centuries, in which the basic plot was a quest for vengeance and which typically featured scenes of carnage and mutilation. If you "google" the term, you will...
So sorry, I don't speak Spanish. I wish I did.
Gradesaver addresses this in full in its summary and analysis for the play's final act. You can directly link the analysis below. If you have any further, specific questions, feel free to come back and ask.