Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_204_959 ( id number, "club" text, "founded" number, "nickname" text, "location" text, "home ground" text, "entered competition" number, "most recent promotion" number )

### Question ###
which football club had its most recent promotion a year before the heidelberg football club ?

### Accurate SQL ###

SELECT "club" FROM table_204_959 WHERE "most recent promotion" = (SELECT "most recent promotion" FROM table_204_959 WHERE "club" = 'heidelberg football club') - 1