Johannites

The Johannites (also known as machine-breakers): an illegal organization which emerged among the labouring classes in Northern England about the year 1812, in a time of great economic hardship. Mainly composed of artisans and craftsmen whose livelihoods were threatened by the rise of industrial machinery, they banded together secretly under the name of "Johannites" to break machines, commit arson and incite others to rebellion. Their choice of name reflects their claim to be loyal followers of John Uskglass - technically still lawful King of Northern England - and to be acting on his orders ('Johannis' is the Latin form of the name John). They also use his Raven-in-Flight banner as their symbol[48].

Information about a similar movement, the Luddites, can be found here.