The Marquesses of Ailsa are the hereditary Clan Chiefs of Clan Kennedy. All of them are descended from Anne Watts, mother of Archibald Kennedy, 1st Marquess of Ailsa, and the Schuyler family, the Van Cortlandt family (including Stephanus Van Cortlandt), and the Delanceys of British North America.
The Marquesses of Ailsa are the hereditary leaders of Clan Kennedy, who are connected to a lineage that includes Anne Watts, mother of Archibald Kennedy, 1st Marquess of Ailsa, and through connections with the Schuyler family, the Van Cortlandt family (including Stephanus Van Cortlandt), and the Delanceys of British North America.