Two teenage neo-Nazis, who encouraged an attack on Prince Harry for marrying a woman of mixed race, have been jailed for terrorism offences.
Michal Szewczuk, 19, from Leeds, and Oskar Dunn-Koczorowski, 18, from west London, were part of a group called the Sonnenkrieg Division.
An Old Bailey judge said their online propaganda was abhorrent and criminal.
Dunn-Koczorowski was given an 18-month Detention and Training Order. Szewczuk was jailed for just over four years.
The defendants, who appeared by video link from HMP Belmarsh, in south-east London, did not react.
The court heard the teenagers used pseudonyms to run personal accounts on the Gab social media site, as well as sharing control of the Sonnenkrieg Division’s own page, on which they posted self-designed propaganda that encouraged terrorist attacks.
Among other things, the imagery suggested the Duke of Sussex was a “race traitor” who should be shot, glorified the Norwegian mass murderer Anders Breivik, and said white women who date non-white men should be hung.
The material was “uniformly violent and threatening” and “the nature of the violence includes rape and execution”, judge Rebecca Poulet said.
Hitler imagined as avatar of a god
By Daniel De Simone, BBC home affairs producer
Sonnenkrieg Division, which police say has the most radical ideology on the UK extreme right, is the latest neo-Nazi group to emerge following the proscription of National Action under anti-terror laws three years ago.
Created by a small number of people, Sonnenkrieg used the internet to exaggerate its size and capabilities, with members seeking direct action from those accessing its propaganda.
Terrorism and criminality were encouraged, as was the transgression of what it caricatured as slavish morality, with sexual violence and paedophilia both advocated.
Their bizarre supernatural belief system imagined Hitler to be an avatar of a god, lionised the Moors Murderer Ian Brady and cult leader Charles Manson, and blended violent Satanism, a berserk misogyny, and admiration for radical Islamism.
The aim? To undermine and collapse civilization, which the group deemed a necessary forerunner to the creation of a Nazi warrior society.
The pair sentenced on Tuesday will have time to reflect whether this was all really such a good idea.