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_203_17 ( id number, "name" text, "date of death" text, "ceremony" text, "year" text, "academy award" text, "film" text, "winner" text )

### Question ###
who has been nominated for the most posthumous academy awards

### Accurate SQL ###

SELECT "name" FROM table_203_17 WHERE "date of death" <= "year" GROUP BY "name" ORDER BY COUNT(*) DESC LIMIT 1