What is the date of death of the duchess born on 30 October 1797?
CREATE TABLE "house_of_habsburg_lorraine_1765_1918" (
  "name" text,
  "birth" text,
  "marriage" text,
  "became_duchess" text,
  "ceased_to_be_duchess" text,
  "death" text,
  "spouse" text
);
SELECT "death" FROM "house_of_habsburg_lorraine_1765_1918" WHERE "birth"='30 october 1797';