Who left office on November 26, 1800?
CREATE TABLE "table1_224840_4" (
  "district" text,
  "vacator" text,
  "reason_for_change" text,
  "successor" text,
  "date_successor_seated" text
);
SELECT "vacator" FROM "table1_224840_4" WHERE "date_successor_seated"='November 26, 1800';