Lady Muriel Frances Mary Parsons (1876-1927) (1876–1927) Parents Lawrence Parsons, 4th Earl of Rosse Frances Cassandra Hawke-Harvey Children Elizabeth Mary Grenfell Joan Sophie Grenfell Cassandra Lorna Grenfell Siblings unknown Parsons William Parsons, 5th Earl of Rosse Geoffrey Lawrence Parsons Partners Harold Maxwell Grenfell