Magnus Fiennes English composer, record producer and songwriter (b. 1965) Parents Jennifer Lash Mark Fiennes Children Cheyenne Allegra Twisleton-Wykeham-Fiennes Shanti Atalanta Twisleton-Wykeham-Fiennes Siblings Martha Fiennes Joseph Fiennes Sophie Fiennes Ralph Fiennes Jacob Mark Twisleton-Wykeham-Fiennes Partners Maya Docik