Austrian nobility refers to the social class of aristocrats in Austria who held titles and privileges, particularly during the Habsburg monarchy. This class included various ranks such as dukes, counts, and barons, often owning large estates and playing significant roles in politics, military, and culture. Their influence peaked from the late Middle Ages until the early 20th century. The decline of Austrian nobility began with the fall of the Austro-Hungarian Empire after World War I, leading to the abolition of noble titles in 1919. Despite this, many noble families still exist today, preserving their heritage and contributing to Austrian society in various ways.