The Scottish aristocracy refers to the noble class in Scotland, historically composed of landowners and influential families. This social group played a significant role in Scotland's political and cultural development, particularly during the Middle Ages and the Renaissance. Titles such as Duke, Marquess, Earl, and Baron were commonly held by members of the aristocracy, often linked to specific regions or estates. Scottish aristocrats were known for their vast estates, which included castles and large tracts of land. They often participated in the governance of Scotland, influencing laws and policies. The decline of the Scottish aristocracy began in the 18th century, particularly after events like the Jacobite risings, which diminished their power and influence.