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 the Slovene culture, Graz remains permanently important due to its university and the Universalmuseum Joanneum archives containing numerous documents from the Slovenian Styria. A symposium on the relation of Graz and the Slovenes was held in Graz in 2010, at the occasion of the 200th anniversary of the establishment of the first and oldest chair of Slovene. It was established at the Lyzeum of Graz in July 1811 on the initiative of . A collection of lectures on the topic was published. The Slovenian Post commemorated the anniversary with a stamp. For Graz's stint as Cultural Capital of Europe a