The Lithuanian Nobility refers to the social class of landowners and aristocrats in the Grand Duchy of Lithuania, which existed from the 13th century until the late 18th century. This nobility played a significant role in the political, economic, and cultural life of Lithuania, often holding important positions in the government and military. Members of the Lithuanian nobility were typically granted land and privileges by the ruling authorities, including the Grand Duke of Lithuania. They were influential in shaping the region's history, particularly during the union with Poland in the late 16th century, which created the Polish-Lithuanian Commonwealth.