Earldom of Mayo
The Tablet, 16th June 1849: THE EARLDOM of MAYO
The title is not extinct, but devolves on Robert Bourke, Esq., of Hayes, Navan, who is now the Right Hon. the Earl of Mayo; and his eldest son, Richard Southwell Bourke, Esq., M.P. for Kildare, is now Viscount Naas. The present Earl is married to a grand daughter of the late Earl of Roden, and has issue seven sons and one daughter.