Sylvia Bassington-ffrench is the wife of Henry and the mother of Thomas. She is an American heiress.
She knows the Draycott family who are cousins of Frankie Derwent.
Portrayals[]
ITV's Agatha Christie's Marple[]
In the 2008 ITV adaptation, the character is morphed into one with a different name and backstory Sylvia Savage.