Graz-Karlau Prison serial killer Wolfgang Ott; and the terrorist Tawfik Ben Chaovali, who was involved in the Rome and Vienna airport attacks. 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
Graz of 444 employees. Furthermore, there is the geriatric hospital Albert-Schweitzer-Klinik in the west of the city with 304 beds, the Krankenhaus der Barmherzigen Brüder I in Lend with 225 beds, the Krankenhaus der Barmherzigen Brüder II in Eggenberg with 260 beds and the Krankenhaus der Elisabethinen in Gries with 182 beds. There are several private clinics as well: the Privatklinik Kastanienhof, the Privatklinik Leech, the Privatklinik der Kreuzschwestern, the Sanatorium St. Leonhard, the Sanatorium Hansa and the Privatklinik Graz-Ragnitz. EMS in Graz is provided solely by the Austrian Red Cross. Perpetually two emergency doctor's cars ("NEF – Notarzteinsatzfahrzeug"), two NAWs