Heinrich, Baron Thyssen-Bornemisza de Kászon

Heinrich Thyssen (31 October 1875 – 26 June 1947), after June 22, 1907 Heinrich Freiherr Thyssen-Bornemisza de Kászon et Impérfalva, was a German-Hungarian entrepreneur and art collector.

Thyssen was born in Mülheim an der Ruhr, the second son of German industrialist August Thyssen. Heinrich Thyssen had abandoned Germany as a young man and, after studying chemistry at the University of Heidelberg and philosophy at the University of London and obtaining a doctorate, he settled in Hungary in 1905 and married the Baroness Margit Bornemisza de Kászon et Impérfalva (Csetény, Veszprém, 23 July 1887 – Locarno, 17 April 1971) in Vienna or Budapest on 4 January 1906 and became a citizen of Austria-Hungary.

In Vienna on 22 June 1907 he was adopted by his father-in-law, Baron Gábor Bornemisza de Kászon et Impérfalva (Kolozsvár, 20 April 1859 – Budapest, 21 April 1915), the King's Chamberlain who, having no sons of his own, adopted Heinrich. The Emperor Franz Joseph I of Austria-Hungary granted him the hereditary title and rank of a baron in the Hungarian nobility in 1907. His mother-in-law was English American Mathilde Louise Price, a descendant of the Winthrop family (Wilmington, New Castle County, Delaware, 14 March 1865 – Locarno, 19 January 1959 and married at Vienna on 16 May 1883), and related to Daniel M. Frost and John Kerry.

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