On August 23rd, 1648, letters were read in the House of Commons from Cromwell, giving an account of the fighting in Lancashire. The total number of prisoners was stated to be 10,000, including many of the Scottish nobility; 3,000 of the invading army had been killed, and much ammunition, together with 150 colours, had been taken.[205] September 7th was appointed as a public thanksgiving day, and Warden Heyrick was named as one of the preachers before the House of Commons. Cromwell returned at once to Lancashire, where he stayed one night at Stonyhurst; and then summoning all his troops which had been left in Lancashire to follow him, he marched after Monro into Scotland, where he remained for some months, returning to London in December. There was, however, still a little to be done in the way of reducing the royalists still in arms in the north of England, and this was entrusted to Assheton. But they were so disorganised that little or no fighting was necessary. Assheton and his Lancashire troops dislodged them from Cockermouth, whence they marched to Carlisle, but they were refused admittance to the town, and scattered in various directions; the main body of cavalry, about 1,000 in number, retreated to Appleby. Here Assheton followed them, and as the royalists had no spirit for further fighting terms were soon agreed upon. The inferior officers and common soldiers were to lay down their arms and have liberty on promising to observe all the Ordinances of Parliament; the Colonels were given six months in which to leave the country. Appleby Castle was surrendered on Oct. 9th together with 1,000 arms and 5 pieces of ordnance. Most of the 1,200 horses of the royalists were bought at low rates by the Parliamentarians before the actual surrender. The chief officers were Sir Philip Musgrave, Sir Thomas Tyldesley, Sir Robert Strickland, Sir William Huddleston; the whole list included 15 Colonels, 9 Lieutenant-Colonels, and 65 inferior officers.[206]