REITRA, a city of the Austrian province of the Hither Danube, in Hungary, and the capital of a circle of the same name, which comprehends 412 towns and villages, with 368,000 inhabitants. The city is situated on the river of the same name, is the see of a bishop, is defended by a strong citadel, and contains 510 houses, with 4100 inhabitants, who grow much good wine. Long. 18. 58. 54. E. Lat. 48. 19. 10. N.