She Clashed Voldemort
McGonagall witnessed when Harry’s dead body was taken (By Voldemort) to his buddies in Harry Potter and It All Ends. She actually faced the Dark Lord. Apart from Kingsley Shacklebolt and Professor Slughorn, McGonagall had her own grudges against Voldemort.
Ministry Aurors attacked her
When Professor Umbridge was ruling in Harry Potter And ‘The Order of the Phoenix’, she along with Aurors attacked Hagrid, McGonagall tried helping Hagrid, however, she couldn’t because of the spells.She was on the verge of death because of the spells and got admitted at St. Mungo’s Hospital.
