During the Napoleonic occupation all religions were equalised in Mecklenburg in 1811. In 1813 Frederick Francis I. revoked the protected status of the Jews and put them on an equal footing with natives. Yet the law only lasted for two years.
The status of the Protestant church remained largely unchanged into the 19th century. In 1837 Grand Duke Paul Frederick (1800-1842) enforced full control of the church, and a comprehensive reporting system for priests based on standard questions was introduced.