Anton Von Prokesch-Ostev, baron, a German author, born in Gratz, Dec. 10, 1795. In early life he served in the army, taught mathematics, and was secretary to Prince Schwarzenberg, whose Denkwürdigkeiten he edited in 1822. For his subsequent services in the East he was ennobled with the name of Von Osten, and at a later period was made privy councillor and general. He was ambassador at Athens 1834-'49, Berlin 1849-'52, Frankfort 1853-'5, and Constantinople 1855-'67, and nuncio at Constantinople 1867-'72. His celebrated collection of coins was bought by the Prussian government in 1875 for the museum of Berlin, for $150,000. Among his works are: Erinner-ungen aus Aegypten und Kleinasien (3 vols., Vienna, 1829-'31); Denkwürdigkeiten und Erinnerungen aus dem Orient, edited by E. Munch from Prokesch's correspondence with Schneller (3 vols., Stuttgart, 1836-'7); Kleine Schriften (7 vols., 1842-'4); and Geschichte des Abfalls der Griechen vom türkischen Reich (6 vols., Vienna, 1867-'8).