The garrison were allowed to march across the Dee to Denbigh. I think that this winter ride from the fallen fortress is the one described by Vaughan in the poem to Mr. Ridsley. It is the more probable that Vaughan took part in this campaign of 1645, in that Charles's force was largely recruited from Wales. After the battle of Naseby on June 14th, the King had marched through Wales, collecting such levies as he could. He was in Brecon on August 5th.[15] It is quite possible that Vaughan, whose kinsman Sir William Vaughan was in command of a brigade, volunteered on this occasion. From Brecon Charles marched through Radnorshire, Shropshire, Staffordshire, Derbyshire, Nottinghamshire, Yorkshire, and so to Oxford. In September he set out again, and[xxxii] after some delay at Hereford and Raglan, finally made for Chester. [xxxi] [xxxii] It is just conceivable that it is to some occasion in this campaign that Vaughan refers when he calls Dr. Powell his "fellow-prisoner" (vol. ii., p. 178). The poet may even have been the Captain Vaughan whose name appears in the official list of prisoners taken at Rowton Heath.[16] Powell's name is not there, but then the list does not profess to be complete. But on the whole I think that Vaughan and Powell were only fellow-prisoners in the Platonic sense of imprisonment in the flesh, and even if a literal imprisonment is intended, it may have been due to some act of persecution which Vaughan had to suffer as a Royalist at a later date. There is in The Mount of Olives (1652) a Prayer in Adversity and Troubles occasioned by our Enemies (Grosart, vol. iii., p. 75), which, if it is to be taken—I think it is not—as autobiographical, seems to show that, at least for a time, he lost his estate. The prayer runs: "Thou seest, O God, how furious and implacable mine enemies are: they have not only robbed me of that portion and provision which Thou hast graciously given me, but they have also washed their hands in the blood of my friends, my dearest and nearest relations. I know, O God, and I am daily taught by that disciple whom Thou didst love, that no murderer hath eternal life abiding in him. Keep me,[xxxiii] therefore, O my God, from the guilt of blood, and suffer me not to stain my soul with the thoughts of recompense and vengeance, which is a branch of Thy great prerogative, and belongs wholly unto Thee. Though they persecute me unto death, and pant after the very dust upon the heads of Thy poor, though they have taken the bread out of Thy children's mouth, and have made me a desolation; yet, Lord, give me Thy grace, and such a measure of charity as may fully forgive them."