Thread:B1bl1kal/@comment-24828288-20161006073529/@comment-24828288-20161006132837

They are one of Shakespeare's most iconic villains and inspired the Carrionite witch aliens from Doctor Who. Also JK Rowling has the Weird Sisters rock group in Harry Potter named after them. They appear at the start of Macbeth and give Macbeth his prophecies that make him take over and kill King Duncan. The Sisters may have been inspired by the Greek Fates. Here's an image of them:

I might go ahead and create the Weird Sisters page if that's alright.