Simon Isaacs, 4th Marquess of Reading English banker and aristocrat (born 1942) (b. 1942) Parents Margot Duke, Marchioness of Reading Michael Isaacs, 3rd Marquess of Reading Children Lady Sybilla Rufus Isaacs Natasha Rufus Isaacs Julian Isaacs, Viscount Erleigh Siblings Lady Jacqueline Isaacs Lord Alexander Isaacs Lord Antony Isaacs Partners Melinda Isaacs, Marchioness of Reading