The teenager who called the Duke of Sussex a “race traitor” in an online post has been jailed for four years and three months.
University student Michal Szewczuk created an image of Harry with a pistol to his head against a blood-spattered background.
The image read “See Ya Later Race Traitor”, referencing Harry’s marriage to Meghan Markle.
The 19-year-old will be detained in a young offenders’ institution after pleading guilty to two counts of encouraging terrorism and five counts of possession of terrorist material.
He was found with the White Resistance Manual and the Al Queda Manual.
Szewczuk was sentenced at the Old Bailey alongside 18-year-old Oskar Dunn- Koczorowski, who had admitted to two counts of encouraging terrorism.
He has been sentenced to an 18-month detention and training order.
Michal Szewczuk (L) and Oskar Dunn- Koczorowski (R) have both been sentenced
The pair had never met in person before the trial but had interacted online.
They were both arrested in December after posting on social media platform Gab, which attracts extremist users.
They appeared in court via video-link from Belmarsh Prison and gave no reaction as they were sentenced.
Judge Rebecca Poulet QC said the pair promoted the extreme violent ideology of right-wing groups.
“The posts I have seen and read are abhorrent as well as criminal by reason of their clear intention to encourage terrorist acts,” she said.
Dunn-Koczorowski’s lawyer David Kitson admitted his client had not changed during the trial.
He said a medical report found the teenager had a “lack of remorse” for his views and a “deeply entrenched ideology”.