Prince Harry is set to “seek permission” to challenge a judge’s decision after suffering a fresh blow. In February, the Duke of Sussex suffered defeat in his High Court battle with the Home Office. Harry, 39, was fighting a 2020 decision by the Executive Committee for the Protection of Royalty and Public Figures (Ravec) that he should receive a different degree of protection when in the UK. The duke subsequently tried to appeal the court’s decision. Earlier today, the Duke of Sussex’s initial bid to bring an appeal was refused. This was after he lost a High Court challenge over a decision to c…