The forced loan created huge resentment, especially when Charles carried out his threat to imprison refusers. MPs began to worry that the king was ignoring the law. In 1627, a group of five gentlemen, who came to be known as the Five Knights, challenged the king's right to imprison them. After lots of pressure from the king, judges in the case found in his favour. This seemed to suggest the king was denying the rule of law, and laying a foundation for tyranny