CREATE TABLE table_204_684 (id DECIMAL, "wrestler:" TEXT, "times:" DECIMAL, "date:" TEXT, "location:" TEXT, "notes:" TEXT)

who is the last wrestler to hold the title ?
SELECT "wrestler:" FROM table_204_684 ORDER BY "date:" DESC LIMIT 1
SELECT "wrestler:" FROM "table_204_684" ORDER BY "date:" DESC NULLS LAST LIMIT 1