No detail of the educations of Thomas’s two sons has been found though they claimed that the secret of their royal descent had been revealed to them about 1811, that they had fought for Napoleon at Dresden (in August 1813), Leipzig (October 1813) and Waterloo (June 1815) and had learned Gaelic in London. The youngest, Charles Manning Allen, who we now know was not born until 1802, married at St George, Hanover Square, on 9 October 1822, Anna Gardiner, who had an income from property in Ireland and was the widow of Major Charles Gardiner (1780-1818), the childless only son of General William Gardiner (1748-1806; DNB) former British Minister in Brussels and Warsaw and younger brother of Luke Gardiner, 1st Viscount Mountjoy (1745-1798). The marriage was publicised as that of ‘Charles Stuart Hay Allen’. However, the couple moved to Scotland after marriage and their first child, Anna Marie Stuart, born 27 July 1823, was baptised at Edinburgh and there recorded in the surname Hay on 20 October 1823.