Friedrich August von der Marwitz explained

Friedrich August Ludwig von der Marwitz (29 May 1777, in Berlin – 6 December 1837, in Friedersdorf) was a Prussian nobleman, officer, and opponent of the Prussian reforms of Heinrich Friedrich Karl vom Stein.^{[1] [2]}

He married twice, first to Caroline Francisca (* 23. March 1783; † 28. March 1804), with whom he had a daughter. His second wife, Charlotte née Gräfin von Moltke (1780–1848) gave birth to nine children, one of whom died. They had three sons and five daughters. Their oldest daughter Karoline Franziska (* 28. February 1804; † 1888) married in 1824 Albert von Arnstedt (1794–1875), a grandson from Adam Friedrich von Arnstedt.

Notes and References

1. Book: Simms, Brendan . The Impact of Napoleon: Prussian High Politics, Foreign Policy and the Crisis of the Executive, 1797-1806 . 2002-06-27 . Cambridge University Press . 978-0-521-89385-5 . 29, 90 . en.
2. Book: Paret, Peter . Yorck and the Era of Prussian Reform . 2015-12-08 . Princeton University Press . 978-1-4008-7598-6 . 149 . en.