The Duke of York, The Prince Frederick 1784–1827, son of George III of the United Kingdom and Charlotte of Mecklenburg-Strelitz. In the British Army as Commander-in-Chief during the Napoleonic Wars, he oversaw the reorganisation of the British Army, putting in place vital structural, administrative and recruiting reforms for which he is credited with having done "more for the army than any one man has done for it in the whole of its history.

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