Public opinion strongly supported the Queen and thereby Canning was strengthened .
Canning resigned from office once more in 1820 , in opposition to the treatment of Queen Caroline , estranged wife of the new King George IV .
Public opinion strongly supported the wife and thereby Canning was strengthened .
Canning resigned from office once more in 1820 , in opposition to the treatment of Queen Caroline , estranged wife of the new King George IV .