Mary Tremenheere Peerage person ID=233352 (1734–1826) Parents Mary Borlase William Tremenheere Children John Granville Grenfell Pascoe Grenfell unknown son Grenfell unknown daughter Grenfell unknown son Grenfell unknown daughter Grenfell William Grenfell unknown daughter Grenfell unknown daughter Grenfell Partners Pascoe Grenfell