GYOR-MOSON-SOPRON

megye (county), northwestern Hungary, bordering Austria and Slovakia to the north. It contains some of the nation's richest farmland, supporting sugar beets, apricots, and livestock. In the west-central part of the megye is the Hansg, a region of swamps and moorland, partly drained and recovered through canalization. Between the Danube main channel and the Moson arm is the Szigetkz, a low-lying watery flatland, with scattered villages, noted for fishing and wildfowl. On a northern spur of the Bakony Mountains, just southeast of Gyor (the megye seat), is Pannonhalma Aptsg, a Benedictine abbey founded in AD 969 by Prince Gza and chartered by Stephen I in 1001. Its 300,000-volume library includes the finest medieval archives in Hungary. In the courtyard of the Eszterhzy Castle at Fertod, annual open-air Haydn memorial concerts are held. Principal towns, aside from Gyor, are Sopron, Mosonmagyarvr, and Kapuvr. Area 1,549 square miles (4,012 square km). Pop. (1991 est.) 424,017.