Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
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?
### Answer:
SELECT byzantine_commander FROM table_name_44 WHERE result = "bulgarian victory" AND battle = "siege of lovech"