House of Windisch-Graetz

The House of Windisch-Graetz, also spelled Windischgrätz, is an ancient Slovene-Austrian aristocratic family, descending from Windischgrätz in Lower Styria (present-day Slovenj Gradec, Slovenia). The noble dynasty serving the House of Habsburg achieved the rank of Freiherren in 1551, of Imperial Counts in 1682 and of Princes of the Holy Roman Empire in 1804. As a mediatised house, the family belongs to high nobility.