Source: wikipedia
Johann Kunckel von Löwenstjern, Kunckel also spelled Kunkel, (born 1630, Rendsburg, Ger.—died March 20, 1702/03, near Parnu), German chemist who, about 1678, duplicated Hennig Brand’s isolation of phosphorus. A court chemist and apothecary, he later directed the laboratory and glassworks at Brandenburg. At Stockholm King Charles XI made him a baron (1693) and member of the council of mines.