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_11656578_2 ( population__1980_ VARCHAR, capital VARCHAR )

### Question ###
How many people lived in the voivodenship whose capital is Siedlce in the year of 1980?

### Accurate SQL ###

SELECT population__1980_ FROM table_11656578_2 WHERE capital = "Siedlce"