In 1427 two members of the family are mentioned in a list of Privy Councillors of the Margraviate of Brandenburg who signed a treaty with Pomerania: "Jaspar Gans zu Putlitz, Achim Gans his son, Herr Hans v. Quitzow, Bernd Rohr, Hans v. Rohr Old Otto von Blumenthal, Ebel v. Möllendorf, Beteke v. Kehrberg, Kone v. Retzdorff, Achim v. Möllendorf" Wichard Joachim Heinrich von Möllendorf (1724–1816) distinguished himself as an officer at the battles of Leuthen, Hochkirch and Torgau, and as a major-general at Burkersdorf and Brix.
[1] In retirement he adopted three great-grandsons of one of his sisters, Hugo, Ottocar and Arnold von Wilamowitz.
Another member of the family, Johann Karl Wolf Dietrich von Moellendorff (1791–1860) was born at his father's estate Rheinsberg, entered military service during the Napoleonic wars and was captured at the retreat after the Battle of Auerstädt.
In 1848 he was Major-General and commander of a brigade in Berlin responsible for the protection of the Royal Palace on March 18 (see Revolutions of 1848 in the German states).
[2] Paul Georg von Möllendorff (1847–1901) was a German linguist and diplomat.