"That Donkin is unpopular, and a man likely to excite resentment and malevolence in hearts capable of entertaining such unworthy feelings, I well know to be the case..."
Horse Guards 23rd july 1813. Extract from a letter addressed to General Sir John Murray. (NA W03/605 f91)
Donkin challenged Admiral Benjamin Hallowell to a duel over the former's accusations which led to the trial of Sir John Murray after the raising of the siege of Tarragona in 1813.
See. Pistols ar Dawn, A history of duelling by Richard Hopton.