Amendment I (Petition and Assembly)
William Blackstone, Commentaries 1:138--391765
4. If there should happen any uncommon injury, or infringement of the rights beforementioned, which the ordinary course of law is too defective to reach, there still remains a fourth subordinate right appertaining to every individual, namely, the right of petitioning the king, or either house of parliament, for the redress of grievances. In Russia we are told that the czar Peter established a law, that no subject might petition the throne, till he had first petitioned two different ministers of state. In case he obtained justice from neither, he might then present a third petition to the prince; but upon pain of death, if found to be in the wrong. The consequence of which was, that no one dared to offer such third petition; and grievances seldom falling under the notice of the sovereign, he had little opportunity to redress them. The restrictions, for some there are, which are laid upon petitioning in England, are of a nature extremely different; and while they promote the spirit of peace, they are no check upon that of liberty. Care only must be taken, lest, under the pretence of petitioning, the subject be guilty of any riot or tumult; as happened in the opening of the memorable parliament in 1640: and, to prevent this, it is provided by the statute 13 Car. II. st. 1. c. 5. that no petition to the king, or either house of parliament, for any alterations in church or state, shall be signed by above twenty persons, unless the matter thereof be approved by three justices of the peace or the major part of the grand jury, in the country; and in London by the lord mayor, aldermen, and common council; nor shall any petition be presented by more than two persons at a time. But under these regulations, it is declared by the statute 1 W. & M. st. 2. c. 2. that the subject hath a right to petition; and that all commitments and prosecutions for such petitioning are illegal.
The Founders' Constitution
Volume 5, Amendment I (Petition and Assembly), Document 10
The University of Chicago Press
Blackstone, William. Commentaries on the Laws of England: A Facsimile of the First Edition of 1765--1769. Chicago: University of Chicago Press, 1979.
Easy to print version.