Franciscus Mercurius van Helmont
Franciscus Mercurius van Helmont
|Born||baptised on 20 October 1614|
 or 1699|
Franciscus Mercurius van Helmont (baptised 20 October 1614 – 1698 or 1699) was a Flemish alchemist and writer, the son of Jan Baptist van Helmont. He is now best known for his publication in the 1640s of his father's pioneer works on chemistry, which link the origins of the science to the study of alchemy.
He led an itinerant life in wanderings in Europe, an adjective already applied to him by Anthony Ashley-Cooper, 3rd Earl of Shaftesbury in his 1711 Characteristicks of Men, Manners, Opinions, Times.  He self-identified as a "wandering eremite". 
Franciscus van Helmont had important groups of contacts in the Netherlands, where he knew Adam Boreel and Serrarius,  and later in life, in 'the Lantern', the circle around the Rotterdam merchant Benjamin Furly that included John Locke.  He was an influence on Franciscus van den Enden, and on the Spanish medical professor Juan de Cabriada.  In Amsterdam around 1690 he worked out theory to support the work Johann Konrad Ammann was doing with deaf people. 
He also spent much time in Germany and England. From 1644, when his father died, to 1658, when Leopold I, Holy Roman Emperor ennobled him, he was constantly involved in diplomacy for German princes and their families. 
His first work was a 1667 Latin treatise Alphabeti veri naturalis hebraici brevissima delineatio (usual short English title Alphabet of Nature) on Adamic language, which he equated with Hebrew.  He argued that the Hebrew alphabet implicitly gave a pronunciation guide, analogous to a musical notation for the tongue and voice. 
He was a friend of Gottfried Leibniz, who wrote his epitaph, and he introduced Leibniz to Christian Knorr von Rosenroth in 1671.  Leibniz writing in 1669 took the "Helmontians" seriously, as one of three contending groups in philosophy, the others being the traditionalist followers of Aristotle, and the Cartesians.  The Helmontians comprised remaining Paracelsans and those who took the writings of Jan Baptist van Helmont to heart.
He came to England in 1670, meeting the king, Charles II.   He was on a diplomatic mission on behalf of Elisabeth of Bohemia, Princess Palatine. At this time he met Robert Boyle, a leading Helmontian chemist. 
Through his relationship as physician to Anne Conway, Viscountess Conway, he began to attend Quaker meetings, in 1675.  In return he introduced her to kabbalist thought. He was resident at the old Ragley Hall from 1671 until 1679, when she died.  Twenty years later, he was a figure in the Keithian Controversy, a schism formed in the Quakers, in which van Helmont took the side of George Keith who broke away.  Keith had translated van Helmont's Two Hundred Queries in 1684; it was a work of speculative theology, written in Latin in a simultaneously published version and anonymous until the following year, and van Helmont had hoped for an effect on Quaker belief, at the time still plastic and uncodified. But he encountered serious resistance from George Fox.    Keith collaborated on van Helmont's Paradoxal Discourses of 1685, but went to some pains to deny he held the same opinions. 
In a A Cabbalistical Dialogue (Latin version first, 1677, in English 1682) he launched a defence of kabbalist metaphysics. He had been closely associated with the Kabbala Denudata of Rosenroth. The Dialogue puts matter and spirit on a continuum, describing matter as a "coalition" of monads.   There are various views on the evolution of the concept of "monad", which Conway and Van Helmont shared with Leibniz. Physicist and philosopher Max Bernhard Weinstein found this to be a kind of Pandeism.  From the same period, the attributed work Adumbratio Kabbalae Christianae, sometimes included with the Kabbala Denudata as an anonymous essay, purported to be a tract to convert Jews to Christianity, but equally served as an introduction to Christian Kabbalist views, and the identification of Adam Kadmon of the Lurianic Kabbalah with Christ. 
In his last years he was in Germany, and continued to work closely with Leibniz. It has been argued that Leibniz may have written the final book to appear under van Helmont's name, the Quaedam praemeditatae et consideratae cogitationes super quattuor capita libri primi Moisis (Amsterdam 1697), translated in English in 1701 as Premeditate and Considerate Thoughts, on the early chapters of the Book of Genesis. 
- Jensen, William B. (2004). "A previously unrecognized portrait of Joan Baptist van Helmont (1579–1644)" (PDF). Ambix. 51 (3): 263–268. doi: 10.1179/amb.2004.51.3.263. S2CID 170689495.
- Biographical section in Carolyn Merchant (1979). "The Vitalism of Francis Mercury van Helmont: Its influence on Leibniz". Ambix. 26 (3): 170–183. doi: 10.1179/amb.19188.8.131.52. PMID 28521588.
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- Allison Coudert (1976). "A Quaker-Kabbalist Controversy: George Fox's Reaction to Francis Mercury van Helmont". Journal of the Warburg and Courtauld Institutes. 39: 171–189. doi: 10.2307/751137. JSTOR 751137.
- Jonathan Israel (1995). The Dutch Republic: Its Rise, Greatness, and Fall 1477–1806. Oxford University Press. p. 589. ISBN 0198207344.
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- Masonic quotes by Brothers. themasonictrowel.com
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- Anne Finche, Viscountess Conway (1631–1678 or 79) Archived 20 July 2011 at the Wayback Machine. oregonstate.edu
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- Allison Coudert (1999). The Impact of the Kabbalah in the Seventeenth Century: The Life and Thought of Francis Mercury Van Helmont (1614–1698). BRILL. p. 241. ISBN 9004098445.
- Barry Levy (1988). Quakers and the American Family: British Settlement in the Delaware Valley. Oxford University Press. p. 164. ISBN 0198021674.
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- Allison Coudert (1995). Leibniz and the Kabbalah. Springer. p. 164, note 129. ISBN 0792331141.
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Welt- und Lebensanschauungen, Hervorgegangen aus Religion, Philosophie und Naturerkenntnis [World and Life Views, Emerging From Religion, Philosophy and Perception of Nature]. p.
Wie er die Seele stoisch betrachtet, so hat er sich im Grunde auch eine Art Pandeismus zurecht gelegt, indem Gott zwar von allen Dingen verschieden, aber doch nicht von allen Dingen abgetrennt oder geteilt sein soll.
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- Claus Bernet (2005) Franciscus Mercurius van Helmont In Bautz, Traugott. Biographisch-Bibliographisches Kirchenlexikon (BBKL) (in German) 25. Nordhausen: Bautz. cols. 586–597. ISBN 3-88309-332-7. (in German, with full bibliography, requires subscription)
- Biography at Compossivel
- Selected Writings of Franciscus Mercurius van Helmont transcribed, edited, and introduced by Don Karr