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_56640 ( "Elector" text, "Nationality" text, "Faction" text, "Order and Title" text, "Elevated" text, "Elevator" text )

### Question ###
What is the Elector with a Faction of roman, and an Elevated with 1244, may 28?

### Accurate SQL ###

SELECT "Elector" FROM table_56640 WHERE "Faction" = 'roman' AND "Elevated" = '1244, may 28'