His coadjutor Matthäus Lang von Wellenburg, who was later to succeed Leonhard, in 1515 wrote a description of the Reisszug, a very early and primitive funicular railway that provided freight access to the upper courtyard of the fortress.
In 1515, Matthäus Lang von Wellenburg, Leonhard's coadjutor, described the Reisszug, a primitive funicular railway designed for transporting goods to the upper courtyard of the fortress.