Upper Styria
The first bishop was Provost Karl von Friesach (1218–30) who had his see at Seckau Abbey in Upper Styria; his diocese only comprised 13 parishes. Most of the time, the Seckau bishops resided at Seggau Castle near Leibnitz and at Graz, they also served as vicars in the Duchy of Styria. Under the Habsburg emperor Joseph II, the diocese was reorganised and its territory enlarged. However, the original intention of the emperor to establish an archbishopric at Graz, the capital of Styria, was frustrated by the opposition of the Archbishop of Salzburg.