On 9 August 1675, King Charles II's illegitimate son (by Louise de Kérouaille) who had been given the surname "Lennox", was created Duke of Richmond, Earl of March, and Baron Settrington in the Peerage of England and on 9 September 1675, was created Duke of Lennox, Earl of Darnley, and Baron Methuen of Torbolten in the Peerage of Scotland. He was invested as a Knight of the Garter on 18 April 1681. In 1684, at the request of King Charles II, the French King Louis XIV created Louise de Kérouaille "Duchesse d'Aubigny" in the Peerage of France, with remainder to her descendants. As the 1st Duke predeceased his mother, he never held the French dukedom, which was however inherited by his son, the duchess's grandson. He was appointed Lord High Admiral of Scotland, under reservation of the commission granted to James, Duke of Albany and York (later James VII), as Lord High Admiral for life. The appointment was therefore only effective between 1701 and 1705, when Lennox resigned all of his Scottish lands and offices.