 In response to this, Leopold renounced his title, through a Royal Warrant from the King, dated 14 July 1917, of a Prince of Battenberg and the style His Highness and became Sir Leopold Mountbatten, by virtue of him being a Knight Grand Cross of the Royal Victorian Order.Under a further Royal Warrant in September 1917 he was granted the style and precedence of the younger son of a Marquess, and became Lord Leopold Mountbatten.Lord Leopold died on , during a hip operation.