The Pilot, 26 July 1848:

DEATH OF LORD GUILLAMORE 

With regret we have learned the melancholy intelligence of the sudden and unexpected death of the above-named amiable nobleman. His lordship dined on Friday at the mess of his old register (the 7th Hussars) and returned home to his lodgings in Leinster-street, in his usual good health and spirits. The noble lord was seized with illness on Saturday morning, and medical aid was immediately called in, but alas! he drew his last breath about half-past nine o'clock.