How Anton Philips is related to Karl Marx

When searching Dutch newspapers on the Delper.nl website for "Marx PROX Philips" loads of erroneous descriptions of the relation between those 2 families appear. Therefore, I decided to write a blog post on how Anton Philips is related to Karl Marx.

Anton  Frederik Philips was born in Zaltbommel, The Netherlands, on 14 March 1874, as a younger son of Benjamin Frederik  David Philips (1830–1900) and Maria Heyligers (1836–1921). Anton’s elder brother Gerard (1858-1942) and their father Frederik founded the Philips Company as a family business in 1891. Anton Philips served as CEO of the company in the period 1922-39. Gerard and Anton also supported education in the city of Eindhoven, and social programs and facilities. Philips had started as a light bulbs factury, but nowadays it's a multinational conglomerate corporation.
Anton Philips married Anne Henriëtte Elisabeth Maria de Jongh (1878-1970). They had a son Frederik Jacques (“Frits”) Philips (1905-2005) and 2 daughters. Anton Philips died in Eindhoven on 7 October 1951, aged 77.
Anton’s paternal grandparents are Lion Philips (1794-1866) and Sophie Presburg (1792-1854). Sophie belonged to a prosperous Jewish business family from Nijmegen in The Netherlands. Sophie and Lion and their children were living in Zaltbommel.

Market Square of Zaltbommel around 1850. The 4th home on the right was the home of Lion Philips.

Karl Marx was born on 5 May 1818 in Trier, Germany. He was a German philosopher, economist, sociologist, political theorist, and socialist revolutionary. His best-known title is the 3-volume “Das Kapital”. Marx addressed the matters of alienation and exploitation of the working class, the capitalist mode of production, and historical materialism. He is famous for analysing history in terms of class struggle.
Karl married German theatre-critic and political activist Jenny von Westphalen (1814-1881) in 1843. Due to his political publications, Marx became stateless, and lived in exile with his wife and children in London for decades. Following the death of his wife Jenny in December 1881, Marx developed a catarrh that kept him in ill-health for the last 15 months of his life. He died in London on 14 March 1883 at age 64. He had 7 children, but only his daughters Jenny, Laura and Eleanor survived to adulthood.
Karl Marx was a son of Heinrich Marx who was born as Hirschel Halevi on 15 April 1777 in Saarlouis (formerly Saarlautern) in Germany. Heinrich's father Levy originated in Postelberg in Bohemia. Heinrich's wife was Henriette Presburg (1788-1863), an elder sister of Sophia, the wife of Lion Philips. In addition to their son Karl, Heinrich and Harriette had 7 more children.
After Napoleon’s defeat, an edict in Germany asserted that Jews could not occupy legal positions, or state offices. Therefore, Hirschel changed his name to Heinrich Marx, and converted to Christianity in the Evangelical Church. Later, his wife and children were baptised, too. Heinrich Marx died in Trier on 10 May 1838.

Isaac Heymans Presburg (±1747–1832)	x |	Nanette Salomons Cohen    (1754-1833)
+-----------+-----------+
| Sophia Presburg (1792-1854) x Lion Philips (1794-1866) |		| Henriette Presburg (1788-1863) x Heinrich Marx Hirschel HaLevi (1777-1838)
Frederik Philips (1830-1900) |		| Karl Marx (1818-1883)
Anton Philips (1874-1951)

The father of Henriette and Sophia was Isaac Heymans Presburg - also Pressburg. He was born around 1747 in Bratislava (Preßburg) in Slovakia. Isaac emigrated to The Netherlands in 1775, and married Nanette Salomons Cohen (1764-1833) on 8 April 1785 in Nijmegen. Isaac died there in 1832. Of the Pressburgs' sons, David became a lawyer in Amsterdam and later in Paramaribo in Surinam, while Marcus remained in Nijmegen as a tobacco trader.

Sources: nl.wikipedia.org (Philips), en.wikipedia.org (Marx), WieWasWie.nl, Klaus Textor in Krefelder Informationen nr. 23 (2008).