Welsh-born author and heiress to the Bachygraig Estate, Hester Lynch Piozzi (1741-1821), published eight books during her lifetime — including her prose history of the world, Retrospection.
Cyhoeddodd yr awdures ac etifedd Cymreig Ystâd Bachygraig, Hester Lynch Piozzi (1741-1821), wyth llyfr yn ystod ei hoes — gan gynnwys ei chyfrol am hanes y byd, Retrospection.