Who was the French Elector Elevated on 1288, May 16?
CREATE TABLE "cardinal_electors" (
  "elector" text,
  "nationality" text,
  "order" text,
  "title" text,
  "elevated" text,
  "elevator" text
);
SELECT "elector" FROM "cardinal_electors" WHERE "nationality"='french' AND "elevated"='1288, may 16';