Two men stand accused of belonging to the jihadist cell that orchestrated the attacks in the Barcelona area in August 2017, while the third defendant is accused of collaborating.
Mourners lit candles and prayed outside Nice's Notre Dame basilica to honour the three churchgoers were killed in a suspected terrorist attack.
People across France took to the streets on Sunday to march in tribute to Samuel Paty, who was murdered after showing his students caricatures of Mohammad.
Turkey sentences man to life in prison for a 2017 nightclub attack, which killed 39 people in Istanbul.
A suspected terrorist wearing a fake suicide bomb was shot dead by police after stabbing two people in a "confusing and alarming" attack in a busy London street.
A Taliban attack on a government security compound in central Afghanistan on Sunday killed at least eight security personnel, six civilians and wounded more than 180, officials said, as rival Afghan groups met in Qatar to discuss peace.
"They are believed to have agreed to carry out an Islamist terrorist attack using a vehicle and guns that would kill as many 'non-believers' as possible," prosecutors said.
A Belgian court has convicted French citizen Mehdi Nemmouche of “terrorist murder” for the shooting deaths of four people at a Jewish museum in Brussels in 2014.
The Catalonian coastal town of Cambrils held a remembrance service one year after terrorists killed 16 people and injured many more in attacks there and in Barcelona