On waht date did Antoinette Jeanne Yvonne Boegner get married?
CREATE TABLE "house_of_rohan_chabot" (
  "name" text,
  "birth" text,
  "marriage" text,
  "became_duke" text,
  "ceased_to_be_duke" text,
  "death" text,
  "spouse" text
);
SELECT "marriage" FROM "house_of_rohan_chabot" WHERE "spouse"='antoinette jeanne yvonne boegner';