Lady Frances Marsham (1778-1868) (1778–1868) Parents Charles Marsham, 1st Earl of Romney Frances Marsham, Countess Romney Children John Charles Riddell Sir Walter Riddell, 10th Baronet Henry Philip Archibald Riddell Charlotte Riddell Jane Riddell Charles Riddell Emily Riddell Siblings Charles Marsham, 2nd Earl of Romney unknown daughter Marsham unknown daughter Marsham Partners Sir John Riddell, 9th Baronet