Who married Gamel Pennington, 4th Baron Muncaster?

Gamel Augustus Pennington, 4th Baron Muncaster (3 December 1831 – 13 June 1862), styled Hon. Gamel Pennington until 1838, was an Irish peer and British landowner. A member of an old Cumberland family, he served as High Sheriff of Cumberland in 1859. He died of illness in Italy in 1862, leaving an infant daughter to succeed to his estates, while his peerage passed to his younger brother.