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_60796 ( "Battle" text, "Date" text, "Bulgarian Commander" text, "Byzantine Commander" text, "Result" text )

### Question ###
What is the Bulgarian Commander in Autumn 1040 at the Battle of Thessalonica?

### Accurate SQL ###

SELECT "Bulgarian Commander" FROM table_60796 WHERE "Battle" = 'battle of thessalonica' AND "Date" = 'autumn 1040'