Dudley Ryder, 7th Earl of Harrowby British politician and businessman (1922-2007) (1922–2007) Parents Dudley Ryder, 6th Earl of Harrowby Lady Helena Blanche Coventry Children Lady Rosalthé Frances Ryder Conroy Ryder, 8th Earl of Harrowby Siblings John Stuart Terrick Dudley Ryder Lady Frances Virginia Susan Ryder Partners Jeanette Rosalthé Johnston-Saint Janet Mary Pierrette Stott