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_name_44 ( byzantine_commander VARCHAR, result VARCHAR, battle VARCHAR )

### Question ###
What is the Byzantine Commander with a Bulgarian Victory at the Siege of Lovech?

### Accurate SQL ###

SELECT byzantine_commander FROM table_name_44 WHERE result = "bulgarian victory" AND battle = "siege of lovech"