Sons of De Montfort (1983: Doomsday)

The Sons of De Montfort are a separatist militia based in the East Midlands, specifically around former Leicestershire. They succeeded in staging a separatist coup, fighting back Newolland's forces and setting up a small left-wing republic known as the Republic of Leicester, with its seat of government in Loughborough. So far, this state remains unrecognized by the rest of the world and the Organisation of British Nations.