Where did she die? A Where did she die? Marilyn died in her bedroom at 12305 Fifth Helena Drive in Brentwood, Los Angeles. Related Back to Top Related Share: Previous post: « What time did Marilyn die? Next post: I heard she died in the guest house because her home had no running water. » Leave a Comment Cancel replyYour email address will not be published. Required fields are marked * Save my name, email, and website in this browser for the next time I comment.