God's Fury, England's Fire_ A New History of the English Civil Wars - Michael J. Braddick [197]
Commitment to dispersal, and the demands of the overall situation, undoubtedly affected the movements of Rupert’s army during the spring. He had left Oxford for Chester in March, where he was lobbied to pursue the relief of Lathom House, but the chief priority was the relief of Newark, which was achieved on 21 March. It was a significant victory, not least because the besieging forces surrendered siege artillery, 3,000-4,000 muskets and large numbers of pikes. But there was an immediate demand for Rupert’s aid in the south. Many of his troops came from Wales and he set off there for replenishment and supply, but was recalled to Oxford on 3 April. The order was countermanded the following day, but it is evidence of the stretch that was now felt in the royalist ranks. Newcastle’s pleas for support in Yorkshire continued to go unheard and the royalists had also been defeated at Nantwich. On 11 April, Selby fell to the Fairfaxes and Newcastle withdrew to York. This allowed the Covenanters and the Fairfaxes to join forces at Tadcaster a week later, threatening the extinction of the royal cause in the north.10
In this situation a parliamentary advance on Oxford, where morale was flagging, was quite possible. On 16 April the Oxford parliament was prorogued following an address imploring Charles to guarantee the safety of the Protestant religion; the failure of another political initiative and the death of what Charles was later known to have called his ‘mongrel parliament’. For Parliament, Oxford and York were the two key military objectives, and the royalist forces were stretched to cover both. While Charles sought to strengthen the position around Oxford with garrisons at Reading, Wallingford, Abingdon and Banbury, Rupert left once more for the north. The Committee of Both Kingdoms was also interested in both objectives, and as the Earl of Manchester took control of Lincolnshire he was sent to York rather than Oxford. Nonetheless, parliamentary advances in May put such pressure on the royalist position in Oxford that the King decided to leave. Charles left Oxford on 3 June with 7,500 men, leaving 3,500 to defend the town, armed with all his heavy artillery, and marched west via Burford, Bourton and Evesham. By the time he reached Evesham it was known that Tewkesbury had fallen to Massey and he opted to take up quarters at Worcester, arriving on 6 June. Three days later Sudeley Castle fell and he ordered a further withdrawal to Bewdley.11
These then were promising days for the parliamentary armies. The King had withdrawn from Oxford and York was under pressure. But the initiative was lost. Essex was sent to relieve Lyme rather than join Waller in a pursuit of the King. This crucial and controversial decision was taken at a council of war at Chipping Norton, at which both Waller and Essex were present. It was an odd one, perhaps intended as a prelude to moving into the west and cutting off the King’s supply. Historians have subsequently blamed Essex and Waller for a crucial error, and at the time the Committee of Both Kingdoms was shocked by the decision and ordered Essex to return, something he notoriously failed to do, on 14 June. Having decided to take this course,