Giambattista Tocco, Duke de Sicignano
Giambattista Tocco Cantelmo Stuart, the Duke de Sicignano (c.1760 – 31 May 1793) was a Neapolitan diplomat who committed suicide shortly after his arrival in England in 1793. Sicignano was appointed to replace the Prince of Castelcicala as the Ambassador of the Kingdom of Naples to the Court of St James's. At the time of his appointment, Sicignano had been the Envoy from Naples to Copenhagen. Sicignano shot himself at Grenier's Hotel on Jermyn Street, St James's, on 31 May 1793. He had spoken for two hours that afternoon with the British Foreign Secretary, Lord Grenville, and was described as having been in "perfect composure" by James Hutton, the editor of the correspondence of James Bland Burges. Hutton wrote that Sicignano had previously complained of much "pain in the head" and had asked his friends whether shooting was preferable to drowning. He dictated two letters to his secretaries and asked them to return at 8 pm. The discovery of the Duke's body was detailed at length in the Annual Register. The coroner was bribed with £100 () not to hold an inquest into Sicignano's death. He was buried in the churchyard of St Pancras Old Church on 3 June 1793.