The Thyssen family traces its origins to Isaak Lambert Thyssen who lived near Aachen in Germany. Isaak's first marriage to Johanna Wirtz produced a son Nikolaus Thyssen, who married and had a son of the same name, and he a son named Friedrich. Friedrich, a banker and wire producer, married his cousin Katharina Thyssen in 1838 and had two sons, August and Joseph. August Thyssen founded the Thyssen Steel conglomerate and with wife Hedwig Pelzer had three children: Fritz, Heinrich, and Hedwig. August's brother Joseph assisted him in his business and with his wife Klara Bagel had two children: Julius and Hans.
Anna Thyssen, wed 1936 Gábor Ödön Ladislaus Josef Maria Graf Zichy de Zich et Vásonykeö, son of count Ladislaus Zichy de Zich et Vásonykeö and Juliane Wittmann. Anita and Ödön divorced in 1946.
Heinrich Thyssen
, refused to participate in the Vereinigte Stahlwerke AG of his brother Fritz in 1926 and founded his own enterprise, including his father's foreign investments and some German companiesapart from the Thyssen steelworks: August Thyssensche Unternehmungen des In- und Auslandes GmbH, today TBG Holdings N.V., wed 1stly 1906 Margit Freiin Bornemisza de Kászon et Impérfalva, divorced 1932 with issue; wed 2ndly 1932 Else Zarske adopted Feller, divorced 1937 without issue; wed 3rdly 1937 Gunhild von Fabrice, divorced 1945 without issue
Henrik Gábor István Ágost Baron Thyssen-Bornemisza de Kászon et Impérfalva, wed 1stly 1929 Elisabeth Clarkson, wed 2ndly 1932 Ilona Kugler, without issue
Margit Gabriella Lujza Baroness Thyssen-Bornemisza de Kászon et Impérfalva, aka "The Killer Countess", wed 1933Johann Maria Josef Ladislaus Count Batthyány de Német-Ujvar
Gabrielle Wilhelmine Hedwige Marie Baroness Thyssen-Bornemisza de Kászon et Impérfalva, wed 1938 Adolf Willem Carel Baron Bentinck van Schoonheten, with issue:
;;* Baron Jarod Kenneth Wilhelm Thyssen DeCoste, presides over current estate.
Hedwig Thyssen, wed firstly 1899 Ferdinand Freiherr von Neufforge, divorced 1908; wed secondly 1908 Maximilian Freiherr von Berg, separated; with issue, three daughters and a natural son
Hedwig Freiin von Neufforge, wed firstly 1918 Tassilo Freiherr von Berg, divorced 1923; wed secondly 1924 GustavEdler von Remiz
Maximiliane Freiin von Berg, wed firstly 1927 Viktor Freiherr Seßler von Herzinger, divorced 1933; wed secondly 1935 Ernst Cassione, divorced 1937; wed thirdly 1937 Roman Marquart, divorced 1944; wed fourthly 1945 Béla Orgoványi-Hanstein, divorced 1962, with issue from the last:
Mignonne Freiin von Berg, wed 1939 Count Friedrich of Wurmbrand-Stuppach, divorced 1945, without issue
