The danger, however, became too pressing to admit of division among the party. The king laid siege to Gloucester, the only stronghold which still arrested him in his march upon London, or impeded the free communication of the royal armies. Common sense gained the ascendant over party hatreds. The moderate understood that before negotiating it was necessary to conquer; the fanatics recognized the truth, that to gain a victory it was for them to serve, for their rivals to command. Essex and his friends regained everywhere the authority of which they had but recently been deprived, and the more impassioned of their adversaries omitted nothing in assuring them of the confidence of Parliament and the country. The week had scarcely passed when the earl set out at the head of fourteen thousand men, to proceed by forced marches to the relief of Gloucester, which city the king had been closely blockading for a fortnight.
Charles had not found even in his most illustrious servants the intelligence and ready disinterestedness which inspired the leaders of the popular party. Lord Newcastle, victorious in Yorkshire, refused to rejoin the king under the walls of London. "As long as Hull shall not be taken," he said, "I cannot leave this part of the country." Hull was in the hands of Fairfax, and the king could not or dared not undertake to attack London unaided. He thought he had secret understandings with the town of Gloucester, and resolved to lay siege to it. A garrison of fifteen hundred men alone defended the town; but the inhabitants were devoted to Parliament, and replied to the order to surrender, "We hold this town for the service of his Majesty and his posterity. We consider ourselves obliged to obey the orders of his Majesty, as they are transmitted to us by the two Houses of Parliament; consequently with the help of God, we will guard the said town with all our might." For twenty-six days they had kept their word, when the king learnt that the Earl of Essex was approaching.
Every means, both warlike and peaceful, was tried to arrest him. Prince Rupert hastened to place himself before him with his cavalry; the king made proposals for peace to him. Essex did not fight, still pressing on his march, and he replied to Charles, "Parliament has not commissioned me to negotiate, but to deliver Gloucester. I will do it, or I will leave my body under the walls." As he deployed his army on the morrow, the 5th of September, upon the hills of Prestbury, two leagues from the besieged town, the sight of the quarters of the king in flames informed him that he had accomplished his task without striking a blow. Charles had raised the siege of Gloucester.
It was not to avoid a combat that the cavaliers had abandoned an investment of which they were weary. Gloucester being revictualled, the Earl of Essex turned back towards London; but on arriving before Newbury, on the 19th of September, he perceived that the enemy had preceded him, and that a battle was inevitable. The action began at daybreak. Valiant was the fighting upon both sides; "the Royalists therein felt the hope of redeeming a reverse which had suspended the course of their triumphs; the Parliamentarians, the desire not to lose, when so near the goal, the fruit of a triumph which had put an end to so many reverses." The soldiery of London manifested the most brilliant courage. At nightfall, both parties maintained their positions. Essex, however, had gained ground, and was preparing to resume the action at daybreak; but the enemy withdrew during the night, and the road was free. On the 22d Essex and his army arrived at Reading, henceforth sheltered from all danger.
The royal army had suffered losses which cast down the courage of the chiefs and the soldiers. More than twenty officers of distinction had fallen; among others, and first of all, Lord Falkland, the honor of the royalist party. "Still a patriot, although proscribed in London, still respected by the people, although a royal counsellor at Oxford, nothing made it incumbent on him to seek the field of battle, but he sought danger with a painful ardor. Profoundly saddened by the evils which he contemplated and those which he foresaw, ill at ease amidst a party whose successes and reverses he almost equally dreaded, his temper had become embittered, he had grown taciturn and gloomy. 'Peace! peace!' he often exclaimed amidst the conversations of his friends; then he relapsed into his despondency. On the morning of the combat he had attired himself carefully, according to his former custom, for some time abandoned, and, as he was urged to remain at his residence, 'No,' he said, 'too long has all this been breaking my heart; I hope that I shall be out of it before it is night,' and he went and joined the regiment of Lord Byron as a volunteer. He fell at the beginning of the action, being dead before his fall was noticed. His friends, Hyde especially, preserved an inconsolable remembrance of him. The courtiers learnt, without any great emotion, the death of a man who had been a stranger to them. Charles manifested decent regrets, and felt himself more at ease in council."
Joy reigned supreme in London. While Essex was re-entering the city with his triumphant troops, it became known that Vane had concluded with the Scots, under the name of "a solemn league" or "covenant," a close alliance, which was sworn to both in Edinburgh and in London. The Presbyterian leaders and people were at the summit of their wishes. Their general had conquered, and their natural allies, the Scots, were coming to their aid. They took advantage of this situation of affairs to exert their religious tyranny; the assemblage of theologians received orders to prepare a scheme of ecclesiastical government, and committees were formed to examine, in each county, the doctrine and conduct of the clericals. Those who had escaped the persecutions of Laud against the nonconformists, now succumbed to the Presbyterian inquisitions. Some few even, who had resumed possession of their livings since the fall of the episcopacy, found themselves again prosecuted. More than two thousand clergymen were expelled from their parishes, and the Anabaptists, the Brownists, and the Independents, were thrown into prisons, where their tyrants had but recently groaned with them. Archbishop Laud, forgotten for three years past in his imprisonment, was summoned to the bar of the Upper House, to reply to the accusation of the Commons, the triumphant Presbyterians bringing the weight of their vengeance and their fears to bear upon adversaries of all parties.
They hastened, for the ground trembled beneath their feet. It was too much to cope, on the one hand, with the Royalists, and on the other with the religious or political Independents, who every day became more numerous and more bold. In religious matters, the Presbyterians admitted neither discussion nor liberty. They looked upon their doctrinal and ecclesiastical system as the only law and the only government permitted and revealed by the word of God. In politics they were moderate. They liked the monarchy while fighting against the king; they respected the prerogative while laboring to subjugate the crown; and they obeyed old customs as much as new requirements, without knowing precisely whether they were proceeding by means of the reforms which they had prosecuted for three years with so much ardor. The leaders themselves came from different sides, and were not all animated by the same desires. Hesitation began to discover itself among them: Rudyard no longer appeared in Parliament, except at rare intervals. St. John and Pym treated the Independents gently; the lords quitted Westminster by degrees and withdrew to their estates, when they did not proceed to rejoin the king. On the morrow of the battle of Newbury, ten lords only sat in the Upper House; they were, for the Presbyterians, an incumbrance rather than a support; the popular movement became every day more estranged from the high aristocracy, separated from the Presbyterians by the religious fanaticism of the latter. Revolution succeeded reform.