Pannonhalma is a town in Győr-Moson-Sopron County, western Hungary, with approximately 4,000 inhabitants. It is about 20 km (12 mi) from Győr. Archduke Otto Habsburg's heart is kept at the Pannonhalma Archabbey, while his body was laid at the Capuchin Crypt in the old Imperial capital of Vienna.

Győr–Moson–Sopron is an administrative county in north-western Hungary, on the border with Slovakia and Austria (Burgenland). It shares borders with the Hungarian counties Komárom–Esztergom, Veszprém and Vas. The capital of Győr–Moson–Sopron county is Győr. The county is a part of the Centrope project.