When was the duchess, who was married on 11 july 1643, born?
CREATE TABLE table_name_12 (birth VARCHAR, marriage VARCHAR)
SELECT birth FROM table_name_12 WHERE marriage = "11 july 1643"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_12 (birth VARCHAR, marriage VARCHAR) Question: When was the duchess, who was married on 11 july 1643, born? [/INST] SELECT birth FROM table_name_12 WHERE marriage = "11 july 1643" </s>