Samuel Paty was murdered by radical Islamist teenager Abdoullakh Anzorov after showing a class cartoons of the Prophet Mohammed
Two friends of Anzorov, French national Naim Boudaoud and Azim Epsirkhanov, a Russian of Chechen origin, had their sentences of 16 years in prison reduced to six and seven years respectively by a Paris court of appeal.
Both were accused of helping Anzorov to procure weapons before the beheading.
Brahim Chnina, the Moroccan father of a girl who falsely claimed that Paty had asked Muslim students to leave his classroom before showing the caricatures, had his 13-year sentence reduced to 10 years.