In 1666, he had a palace built in Herrenhausen near Hanover that was inspired by the Palace of Versailles and is famous for its gardens, the Herrenhausen Gardens.
În 1666, a construit un palat la Herrenhausen în apropiere de Hanovra, care a fost inspirat de Palatul de la Versailles și faimoasele sale grădini, grădinile Herrenhausen.