He then transferred as a major to the Royal Horse Guards (Blues) on 15 November 1805 and received his brevet promotion to lieutenant-colonel on 1 January 1819.
[3] He commanded the Blues during the Peninsular War and led a brigade of cavalry at the 1813 Battle of Vitoria, for which he received the Army Gold Medal.
[3] At Waterloo, Hill, while a commander of the Royal Horse Guards, was wounded when a musket ball entered his right shoulder and passed through his arm.
[9] Hill later became Deputy Lieutenant of Shropshire, a magistrate for the Wem and Whitchurch divisions,[4] and a Commissioner of Income and Property Taxes for the latter.
[10] Robert Hill married Eliza Lumley, daughter of Henry Lumley, on 5 February 1801,[6] and they had the following children:[1] His younger brothers Clement and Thomas also followed military careers; they were all present at the Battle of Waterloo, along with their elder brother, Lord Hill.