John Granville Grenfell Peerage person ID=475606 (b. 1772) Parents Pascoe Grenfell Mary Tremenheere Children Sidney Grenfell John Pascoe Grenfell Siblings Pascoe Grenfell William Grenfell unknown son Grenfell unknown daughter Grenfell unknown daughter Grenfell unknown daughter Grenfell unknown daughter Grenfell unknown son Grenfell Partners Sophia Turner