The second constitutional principle established in the reign of Edward III. was that the king and two houses of parliament, in conjunction, possessed exclusively the right of legislation. Laws were now declared to be made by the king at the request of the commons, and by the assent of the lords and prelates. Such at least was the general form, though for many subsequent ages there was no invariable regularity in this respect. The commons, who till this reign were rarely mentioned, were now as rarely omitted in the enacting clause. In fact, it is evident from the rolls of parliament that statutes were almost always founded upon their petition.[113] These petitions, with the respective answers made to them in the king's name, were drawn up after the end of the session in the form of laws, and entered upon the statute-roll. But here it must be remarked that the petitions were often extremely qualified and altered by the answer, insomuch that many statutes of this and some later reigns by no means express the true sense of the commons. Sometimes they contented themselves with showing their grievance, and praying remedy from the king and his council. Of this one eminent instance is the great statute of treasons. In the petition whereon this act is founded it is merely prayed that, "whereas the king's justices in different counties adjudge persons indicted before them to be traitors for sundry matters not known by the commons to be treason, it would please the king by his council, and by the great and wise men of the land, to declare what are treasons in this present parliament." The answer to this petition contains the existing statute, as a declaration on the king's part.[114] But there is no appearance that it received the direct assent of the lower house. In the next reigns we shall find more remarkable instances of assuming a consent which was never positively given. [Sidenote: Statutes distinguished from ordinances.]