Eggenberg, noble family from Styria, merchants in Radkersburg and Graz in the 15th century, made a fortune in the exchange business. Became barons in 1598. The family died out in 1717 and the Schwarzenberg family inherited their estates in Bohemia. Among the most prominent members of the E. family were Baron Johann Ulrich von Eggenberg and Baron Ruprecht von Eggenberg.
Literature#W. E. Heydendorff, Die Fuersten und Freiherren von E. und ihre Vorfahren, 1965; NDB.