Viscount Cahiravahilla

Viscount Cahiravahilla was a Jacobite peerage created by King James II of England for Dominick Roche, Mayor of Limerick, in 1689. He was also created Baron Tarbert.

After the downfall of James's cause Roche was apparently left in possession of his estates; his male descendants seem to have simply let the title lapse.

References

Cokayne Complete Peerage, 6 volumes Reprinted Gloucester 2000