In May 1638 , after the outbreak of the revolt against the new Prayer - Book , he was appointed commissioner for Scotland to appease the discontents .
On his return to Britain , Hamilton became Charles I 's chief adviser in Scottish affairs .
In May 1638 , after the outbreak of the revolt against the new Prayer - Book , Hamilton was appointed commissioner for Scottish to appease the discontents .
On his return to Britain , Hamilton became Charles I 's chief adviser in Scottish affairs .