DOWNTON Abbey stars have led tributes to Dame Maggie Smith as she dies aged 89.
The beloved actress played Professor Minerva McGonagall in blockbuster film franchise Harry Potter.
GettyMaggie Smith has died aged 89[/caption] AlamyMaggie also starred in Downton Abbey, playing Violet Crawley[/caption] Tribute have flooded in for the award-winning actress, including from her Downton Abbey co-starsGettyMaggie was also well-known for bringing her scathing wit to other roles...