In the 1870s Napier began styling himself as the Prince of Mantua and Montferrat with subsidiary titles as prince of Ferrera, Nevers, Rethel, and Alençon; Baron de Tobago; and master of Lennox, Kilmahew, and Merchiston.
Ian Robertson, Lord Robertson TD, Senator of the College of Justice in Scotland, 1966–1987, chairman of the Merchiston Board of governors, 1970–1996