In 1879 he founded the Aachener Geschichtsverein, and having spent his concluding years at Bonn and at Aix-la-Chapelle, he died in the latter city on the 27th of April 1887.
In 1879 he founded the Aachener Geschichtsverein, and having spent his concluding years at Bonn and at Aix-la-Chapelle, he died in the latter city on the 27th of April 1887.