"The Twa Sisters" ("The Two Sisters") is a traditional murder ballad, dating at least as far back as the mid 17th century. The song recounts the tale of a girl drowned by her jealous sister. At least 21 English variants exist under several names, including "Minnorie" or "Binnorie", "The Cruel Sister", "The Wind and Rain", "Dreadful Wind and Rain", "Two Sisters", "The Bonny Swans" and the "Bonnie Bows of London". The ballad was collected by renowned folklorist Francis J. Child as Child Ballad 10 and is also listed in the Roud Folk Song Index (Roud 8). Whilst the song is thought to originate somewhere around England or Scotland (possibly Northumbria), extremely similar songs have been found throughout Europe, particularly in Scandinavia.