Complex sentence: Her application to have Druce's grave in Highgate Cemetery opened to show that the coffin buried in it was empty and weighted with lead was blocked by Druce's executor and the case became the subject of continuing and unsuccessful legal proceedings.
Split into simpler sentences: Her application to have Druce's grave in Highgate Cemetery opened to show that the coffin buried in it was empty and weighted with lead was blocked by Druce's executor. The case became the subject of continuing and unsuccessful legal proceedings.