user: Question: What is every date successor seated for the Virginia 11th District?
Columns: ['District', 'Vacator', 'Reason for change', 'Successor', 'Date successor seated']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Virginia 5th', 'John Randolph ( J )', 'Died May 24, 1833', 'Thomas T. Bouldin ( J )', 'Seated December 2, 1833']
SQL:

assistant: SELECT "Date successor seated" FROM "Table" WHERE "District" = 'Virginia 11th';