Heschel Mordechai "Heinrich Marx" (seit 1812 Heinrich oder Henry) (seit 4.10.1808:) Marx , (Saarlouis 15.(?)4.1777, - Trier 10.5.1838). Heinrich was a wealthy and prominent lawyer in Prussia and the father of the famous socialist philosopher Karl Marx, who directed much of young Karl's education and with whom he maintained a close and financially supportive relationship during his son's political radicalization and literary career.
Heinrich "Herschel" Marx was ancestrally Jewish, and his paternal line had been rabbis in Trier since 1723. They lived a wealthy and middle-class existence, with Herschel's family owning a number of Moselle vineyards. 
Heinrich Marx was born Herschel Mordechai, to Marx Levy Mordechai (1743–1804) and Eva Lwow (1753–1823). Heinrich Marx's father was the rabbi of Trier, an occupation later filled by Heinrich's older brother.
Heinrich married Henrietta Pressburg (1788-1863). Heinrich's wife Henrietta was a semi-literate Dutch Jewish woman, although from a prosperous business family that later founded the company Philips Electronics: she was great-aunt to Anton and Gerard Philips, and great-great-aunt to Frits Philips. Her nephew, Benjamin Philips (1830–1900), was a wealthy banker and industrialist, upon whom Karl and Jenny Marx would later often come to rely for loans while they were exiled in London. In contrast to her husband, Henrietta retained her Jewish faith.
Herschel qualified as a lawyer in 1814 while his native Rhineland was under control of the more detached French government. But upon Napoleon's 1815 defeat at Waterloo, the Rhineland came into the conservative control of the Kingdom of Prussia. An 1812 edict, which had been unenforced by the French, asserted that Jews could not occupy legal positions or state offices, but Prussian enforcement of the law led Herschel to convert from Judaism to Prussia's predominant Lutheranism, and so he became called Heinrich. 
Lic. jur., 1814 Avoué , 1815, Advokat beim Appellationshof, 1820 Advokatanwalt (Rechtsanwalt) am Landgericht in Trier, 15.10.1831 kgl. preuß. Justizrat, wohnte Brückenstr. 10, kaufte 1819 das Haus Simeonstr.8, Rechtsanwalt in Trier
In 1815 Heinrich Marx began work as an attorney. 
Heinrich's famous son Karl Marx was born on 5 May 1818 at 664 Brückergasse in Trier, a town then part of the Kingdom of Prussia's Province of the Lower Rhine.  That town and region was folded into West Germany after World War II, and since the 1990s has been part of the consolidated Republic of Germany. Karl was the third of nine children, and he became the oldest surviving son when his brother Moritz died in 1819.
in 1819 Heinrich moved his family to a ten-room property near the Porta Nigra. Young Karl was baptised into the Lutheran Church in August 1824, and his surviving siblings, Sophie, Hermann, Henriette, Louise, Emilie and Karoline, were also baptised as Lutherans. Prior to high school, young Karl was privately educated, by his father Heinrich Marx.
trat mit seiner Familie 1824 zum Protestantismus über, da er sonst den Anwaltsberuf hätte aufgeben müssen.
oo Nijmegen (Nymwegen)/Holland 22./30.11.1814
Henriette Preßburg , * Nymwegen (Nijmegen) 20.9.1788, evgl. get. Trier 20.11.1825, + Trier 30.11.1863
From 1830-1835 Karl Marx attended Trier high school. 
Cousine 2. Grades von Heinrich Heine, wohnte bis 1853 in Trier im Haus Simeonstr. 8 (verkauft, dann Fleischstr. 476)
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