Also, was exposed the theory that the Queen Agnes (Agnes Regina) whose obituary is recorded in Zwiefalten was the wife of Bolesław II; is also believed that she belonged to the Přemyslid dynasty.
From 1794–95 he studied Oriental languages at the monastery of Zwiefalten, and then taught scripture at Wiblingen 1796–99, at Mehrerau 1799-1801, again at Wiblingen 1801–03, at the Benedictine University of Salzburg 1803–07, at the University of Cracow 1807–09, at the University of Prague 1811–13, and at the University of Vienna 1813–24.