Either from information that had been received, or merely _in terrorem_, there had, during the past summer and autumn, been numerous arrests of persons of rank and wealth that had hitherto been allowed to live quietly in their country mansions, on the understanding that, though Royalists, they had ceased to be such, in any active sense. The Marquis of Hertford, the Earl of Lindsey, the Earl of Newport, the Earl of Northampton, the Earl of Rivers, the Earl of Peterborough, Viscount Falkland, and Lords Lovelace, St. John, Petre, Coventry, Maynard, Lucas, and Willoughby of Parham, with a great many commoners of distinction, had been thus arrested. There was a general consternation among the peaceful Royalists throughout the country. It looked as if their peacefulness was to be of no avail, as if the Act of Oblivion of Feb. 1651-2 was to be a dead letter, as if Cromwell had suddenly changed his policy of universal conciliation. In reality, Cromwell had no intention of reversing his policy of universal conciliation; but he wanted to teach the lesson that Royalist insurrections and conspiracies would fall heavily on the Royalists themselves, and he wanted particularly, at that moment, to make the Royalists pay the expenses of the police kept up on their account. Under cover of the consternation caused by the numerous arrests, he introduced, in fact, a _Decimation_ upon the Royalists, i.e. an income tax of ten per cent, upon all Royalists possessing estates in land of £100 a year and upwards or personal property worth £1500. It was to be the main business of the Major-Generals to assess this tax within their bounds, and to collect it strictly and swiftly. It is astonishing with what ease they succeeded. It seems to have been even a relief to the Royalists to know definitely what their principles were to cost them, and to have arrest or the dread of it commuted into a fixed money payment. As soon as the tax was fairly in operation, all or most of those who had been arrested were liberated, and subsequent arrests by the Major-Generals themselves were only of vagabonds or suspicious persons. The only appeal from the Major-Generals was to his Highness himself and the Council.[1] [Footnote 1: Godwin, 223-242; Carlyle, III. 101.]