The first ‘Sandhurst’ at Marlow in Buckinghamshire
Although the west wing of Remnantz was demolished when the house was purchased by the Brewery family of Wethered in 1825, much of the original house remains.
Le Marchant was an important influence in the re-organisation and training of the British cavalry arm in the Napoleonic Wars, drafting new regulations and designing a sword.
In August 1811, as major general, John le Marchant went to Spain to command the Heavy Cavalry Brigade in Wellington’s army, comprising 5th Dragoon Guards and 3rd and 4th Dragoons. Le Marchant was killed immediately after his decisive charge against the French left wing at the Battle of Salamanca on 22nd July 1812 (see
http://www.britishbattles.com/peninsula/peninsula-salamanca.htm)