During the Battle of Hogwarts, Fred is killed by Augustus Rookwood in an explosion. Before his death, Fred reconciles with his estranged brother Percy, who arrives at Hogwarts to participate in the fight and apologises to the family for not believing them.

How did Fred Weasly die?

Fred participated in the Battle of Hogwarts (1998), defending the castle's passageways with his twin. While fighting alongside his brother, Percy, he was killed in an explosion caused by an unknown Death Eater.

Who disarmed Fred Weasley?

One of the twins is briefly seen being disarmed by a Death Eater, and due to the scene literally being two seconds long, it's believed it was Fred who was being attacked – but it was actually George (who was wearing a purple jacket.