Of all the Harry Potter characters that fought alongside Harry to defend Hogwarts in The Deathly Hallows, some are praised for their heroism while some are simply lost in the chaos. The Battle of Hogwarts had been brewing for seven books, finally unavoidable after Harry and his friends destroyed enough Horcruxes to cause an upset. However, once the battle began, it is no secret that plenty of beloved characters were lost forever including Remus Lupin and Fred Weasley. There are also many notable characters who fought valiantly with Harry without recognition after the war.

https://screenrant.com/harry-potter-cho-chang-after-deathly-hallows/