I want to know the answer to the following question:
WHo could nullify all the proceedings of a given sejm?
All the background I'm provided with is that "Between 1652 and 1791, any nobleman could nullify all the proceedings of a given sejm (Commonwealth parliament) or sejmik (Commonwealth local parliament) by exercising his individual right of liberum veto (Latin for "I do not allow"), except in the case of a confederated sejm or confederated sejmik.". Is that enough to answer the question?