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_68310 ( "Name" text, "Birth" text, "Marriage" text, "Became Consort" text, "Ceased to be Consort" text, "Spouse" text )

### Question ###
Tell me the name of the person married to frederick ix

### Accurate SQL ###

SELECT "Name" FROM table_68310 WHERE "Spouse" = 'frederick ix'