Graz-Karlau Prison Graz-Karlau Prison Graz-Karlau Prison () is located in Gries, the 5th district of the city of Graz, capital of the Austrian state of Styria. With a capacity of 552 inmates, Graz-Karlau is the third largest prison in Austria. Built between 1584 and 1590 in late Renaissance style to designs by Antonio Tade and Antonio Marmoro, it was used as a summer hunting residence for Archduke Karl II of Austria. Originally, it was called "Dobel Castle". The German word "Dobel" is also written "Tobel", a deep, ravine-like valley or can also be a place and field-name. Because the castle's name was
Graz it remains influential to this day. In 1999, Graz was added to the UNESCO list of World Heritage Sites, and the site was extended in 2010 with Eggenberg Palace (German: Schloss Eggenberg). Graz was the sole Cultural Capital of Europe of 2003 and became a City of Culinary Delights in 2008. The name of the city, Graz, formerly spelled Gratz, most likely stems from the Slavic "gradec", "small castle". Some archaeological finds point to the erection of a small castle by Alpine Slavic people, which over time became a heavily defended fortification. In literary Slovene, "gradec" still means "small castle",