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Johann Philipp Breyne Johann Philipp Breyne FRS (9 August 1680, Danzig (Gdańsk), Royal Prussia (a fief of the Crown of Poland) – 12 December 1764, Danzig, Royal Prussia), was a German-Polish botanist, palaeontologist, zoologist and entomologist. He is best known for his work on the Polish cochineal (Porphyrophora polonica), an insect formerly used in production of red dye. Proposed by Hans Sloane, he was elected, on 21 April 1703, a Fellow of the Royal Society. He was also a member of the German Academy of Sciences Leopoldina (after 1715) and the Societas Litteraria (after 1720) BiographyJohann Philipp Breyne was the son of Jacob Breyne. After the death of his father, he studied at Leiden University. His teachers included Govard Bidloo and Herman Boerhaave. in 1699 he was awarded the title of Doctor of Medicine. In August 1702, accompanied by letters of recommendation from his teachers, he travelled to England for a nine-month study visit. There he was first received by James Petiver and soon met other influential members of the Royal Society, such as Hans Sloane and John Ray. In October 1703 he arrived in Italy on board an English frigate. In Padua he visited Antonio Vallisneri. Via Bologna he came to Ancona, where he collected sea animals on the Adriatic coast. He returned to Danzig via Austria, Bohemia, Germany and finally Holland at the end of 1704. There he first practiced as a doctor and a short time later married Constantia Ludewig. They had six children. In his house in the Gdansk Langgasse, which was located in the immediate vicinity of Jacob Theodor Klein, he built up an extensive natural history collection by exchanging with other scientists. In his garden he cultivated a variety of exotic plants. His garden was visited in 1716 by tsar Peter the Great and his personal physician Robert Erskine. Since Breyne was wealthy, he was finally able to turn completely to natural science. His diverse interests are evident in his works. in 1705 he published a short article in the Philosophical Transactions on the scale louse Porphyrophora polonica, which he had observed on the Spanish coast near Valencia. In 1731 he dedicated an extensive publication to the little animal. in 1725 he reported a plant leaf encased in amber. Together with Hans Sloane, he published a work in 1737, on mammoth bones excavated in Siberia. His most important achievement is the completion of the work Prodromi fasciculi rariorum plantarum primus et secundus, left by his father... which he worked on from his return to Gdansk until 1739. At the suggestion of Hans Sloane, he was elected a member of the Royal Society on April 21, 1703. He was a member of the Leopoldina (from 1715), Académie des sciences (from 1715) and the Societas Litteraria (from 1720), a forerunner of the Naturforschende Gesellschaft in Danzig. Johann Philipp Breyne died on 12 December 1764 in Danzig at age 84. The Breyne family's estate is now housed in the Gotha Research Library. FamilyOn 9 September 1707 Johann Philipp Breyne married Constantia Ludewig, daughter of juror Heinrich Ludewig. They had six children:
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