Jacob Mark Twisleton-Wykeham-Fiennes (born 1970) (b. 1970) Parents Mark Fiennes Jennifer Lash Children Nathaniel Twisleton-Wykeham-Fiennes Teale Isabella Twisleton-Wykeham-Fiennes Siblings Martha Fiennes Sophie Fiennes Ralph Fiennes Joseph Fiennes Magnus Fiennes Partners Melanie Plaice