Treaty of Rastatt
With the Treaty of Rastatt in 1714, she built the Einsiedeln Chapel in Rastatt in gratitude. Louis George reached his majority on 22 October 1727 at the age of 25. Sibylle thus retired from state administration to Ettlingen Palace in Ettlingen. In her dowager years, she also carried out various improvements which were finished in the year of her death in 1733.