CREATE TABLE table_203_172 (id DECIMAL, "title" TEXT, "date of creation" TEXT, "surname" TEXT, "first titular" TEXT)

what duke has the newest date of creation ?
SELECT "title" FROM table_203_172 ORDER BY "date of creation" DESC LIMIT 1
SELECT "title" FROM "table_203_172" ORDER BY "date of creation" DESC NULLS LAST LIMIT 1