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_52 (birth VARCHAR, became_duchess VARCHAR)
### Question:
What is the Birth of the lady that has a Became Duchess on 18 august 1593 husband's accession?
### Answer:
SELECT birth FROM table_name_52 WHERE became_duchess = "18 august 1593 husband's accession"