It was not without good grounds that the commons were so fierce and assuming. Though they had already granted the king the supply of five subsidies, they still retained a pledge in their hands, which they thought insured them success in all their applications. Tonnage and poundage had not yet been granted by parliament; and the commons had artfully, this session, concealed their intention of invading that branch of revenue, till the royal assent had been obtained to the petition of right, which they justly deemed of such importance. They then openly asserted, that the levying of tonnage and poundage without consent of parliament, was a palpable violation of the ancient liberties of the people, and an open infringement of the petition of right, so lately granted.[*] The king, in order to prevent the finishing and presenting this remonstrance, came suddenly to the parliament, and ended this session by a prorogation.[**] * Rushworth, vol. i. p. 628. Journ. 18th 20th June, 1628. ** Journ, 26th June, 1628. Being freed for some time from the embarrassment of this assembly, Charles began to look towards foreign wars, where all his efforts were equally unsuccessful as in his domestic government. The earl of Denbigh, brother-in-law to Buckingham, was despatched to the relief of Rochelle, now closely besieged by land, and threatened with a blockade by sea: but he returned without effecting any thing; and having declined to attack the enemy's fleet, he brought on the English arms the imputation either of cowardice or ill conduct. In order to repair this dishonor, the duke went to Portsmouth, where he had prepared a considerable fleet and army, on which all the subsidies given by parliament had been expended. This supply had very much disappointed the king's expectations. The same mutinous spirit which prevailed in the house of commons had diffused itself over the nation; and the commissioners appointed for making the assessments had connived at all frauds which might diminish the supply, and reduce the crown to still greater necessities. This national discontent, communicated to a desperate enthusiast, soon broke out in an event which may be considered as remarkable.