 The order of sejm proceedings was formalized in the 17th century. The lower chamber would do most of the statute preparation work. The last several days were spent working together with the Senate and the king, when the final versions were agreed upon and decisions made; the finished legislative product had to have the consent of all three legislating estates of the realm, the Sejm, the Senate, and the monarch. The lower chamber's rule of unanimity had not been rigorously enforced during the first half of the 17th century.
