Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### 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"