Landgrave George I started collecting maps, which are listed in the early library catalogues as single sheets (80-100 sheets).
Louis IX (the “soldier landgrave”) was mainly interested in war maps, fortress plans and other plans for military use. The collection grew.
The following generations of landgraves continued to add to the collection. In 1865, the library's map holdings contained around 12,.000 sheets.
Incorporating the maps in the former cabinet library and the valuable library of Baron von Closen-Günderrode provided further valuable growth.
The project demonstrates how historical and current maps merge, and provides a new perspective on geographical changes. Georeferencing