What is the Spouse of the Duchess that has a Death on 6 april 1780?
CREATE TABLE table_name_61 (spouse VARCHAR, death VARCHAR)
SELECT spouse FROM table_name_61 WHERE death = "6 april 1780"
### Context: CREATE TABLE table_name_61 (spouse VARCHAR, death VARCHAR) ### Question: What is the Spouse of the Duchess that has a Death on 6 april 1780? ### Answer: SELECT spouse FROM table_name_61 WHERE death = "6 april 1780"