'No Popery' rioters accost Lord William Mansfield; 1780. The 1780 Gordon Riots: anti-Catholic reaction to 1778 Papists Act. Named for Lord George Gordon; president of Protestant Association. House of Lords members attacked during a march for GG to present a petition to repeal the Act. Taken from Cassell's History of England vol. iv; published by Cassell & Co Ltd; p.265.