== ancestry of Pauline de Rothschild == 

 You're right; my information at the time I made that edit (some months ago) was incomplete (from my own genealogical files; Francis Scott Key is my 4th cousin 6x removed, and Mary Tayloe Lloyd is my 2nd cousin 6x removed) and I've since (after further research) discovered I was in error. I do note, however, that the previous version incorrectly showed the line of descent passing through Gwendolen Cary.