A correspondent has told me that contrary to what appears in Burke's PB 2003 and Debrett 2013, the 1979 marriage of Michael Ramon Langhorne Astor (b. 1946) of Hatley Park (Cambs) and Daphne Warburg has produced three children: Jessica Nancy Astor, Luke Langhorne Astor and Heloise Mary Astor. I can find confirmation from online sources that these children exist (and have therefore added them to my blog post on the family (
http://landedfamilies.blogspot.co.uk/2016/08/223-astor-of-cliveden-and-hever.html), but I have not found any information about their dates of birth. Are any members of the group able to supply this information? Michael Astor has an earlier, illegitimate son, and it would be useful to have confirmation that these children were indeed born subsequent to the marriage. If they were, Luke Langhorne Astor would be in remainder to the peerage, albeit a long way down the list.