A Court of Claims, headed by Sir Richard Raynsford, was set up to investigate who was eligible for recovery of their lands. Unfortunately, the Commissioners found that too many Catholics were "innocent" and a further Act of Explanation 1665 was needed to find a workable solution. The Act of Explanation stated that Cromwellian settlers (with some named exceptions) had to give up one third of the lands they had received after 1652 to compensate innocent Catholics. This was a very complicated process, as most of the new owners had bought their land from the Cromwellian grantees, and so numerous contracts had to be unwound. Many of these buyers were not settlers but people who had already been living in Ireland before 1641.