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_20956 ( "Year" real, "Edmonton Hundred" real, "Elthorne Hundred" real, "Gore Hundred" real, "Isleworth Hundred" real, "Holborn Division" real, "Finsbury Division" real, "Kensington Division" real, "Tower Division" real, "Spelthorne Hundred" real, "Within the Walls" real, "Without the Walls" real, "Inns of Court and Chancery" real, "Westminster City and Liberty" real, "Total" real )

### Question ###
When 272966 is the tower division what is the highest holborn division?

### Accurate SQL ###

SELECT MAX("Holborn Division") FROM table_20956 WHERE "Tower Division" = '272966'