(and yes then I did. because this is what you should do with your time: cut together pieces of Juan Borgia being a terrible person. Also warning for spoilers for all.)

Okay so the main torture thing is here, with typical nsfw because semi-strapaddo, um... limb loss, gore, and Caterina Sforza taunting Juan with her genitals.

But earlier before that there was... his ISSUES with a peasant boy

And even in the first episode there were hints of it.