What is the birth date of the duchess who married on 1 May 1844?
CREATE TABLE table_name_16 (birth VARCHAR, marriage VARCHAR)
SELECT birth FROM table_name_16 WHERE marriage = "1 may 1844"
### Context: CREATE TABLE table_name_16 (birth VARCHAR, marriage VARCHAR) ### Question: What is the birth date of the duchess who married on 1 May 1844? ### Answer: SELECT birth FROM table_name_16 WHERE marriage = "1 may 1844"