June Mary Ponsonby (1924-2010) (1924–2010) Parents Elgiva Margaret Dundas Hubert Ponsonby, 5th Baron de Mauley Children Robert John Sylvester Grimston, 3rd Baron Grimston of Westbury Gerald Charles Walter Grimston Georgiana Mary Grimston Siblings Elizabeth Winifred Ponsonby Gerald Ponsonby, 6th Baron de Mauley Thomas Maurice Ponsonby Partners Robert Grimston, 2nd Baron Grimston of Westbury