"Alexander Friedrich von Knobelsdorff (13 May 1723 in Cunow near Crossen – 10 December 1799 in Stendal) was a Prussian field marshal." - (en.wikipedia.org 30.01.2020)
en
(The left column lists the relations of this actor to objects in the right column. In the middle you find other actors in relation to the same objects.)