Willie's Fatal Visit (Roud 244, Child 255) is an English-language folk song, most likely originating in Scotland.
[1][2] A woman asks after her mother, her father, her brother John, and her true love Willie.
He came to her at night, and she took him to bed, telling the cock not to crow until daylight.
It crows earlier, and she takes the moonlight for dawn.
By a church, she tells him that he traveled in sin and said no prayers; then she kills him, tearing his body asunder.