The kiss of death is found, for example, in Child 49, Two Brothers in Child B and C (Motherwell c. 1825) his sweetheart (usually Susan/Susie) finds the location of his burial and sings, plays or weeps him from his grave where she asks for a final kiss. The murdered brother warns her that to kiss him would prove to be fatal for her and she sees him no more. In Child 74 after William kisses Margaret's cold clay lips, he dies.

Does this kiss cause his death?