The Prussian Trust is registered in the capital city of what German state?
Prussian Trust:  KGaA" ) is a corporation registered in Düsseldorf, founded in 2000 as "Preußische Treuhand GmbH" by some descendants of German expellees, and supported by some officials of the Landsmannschaft Schlesien organization. Düsseldorf: Düsseldorf (] , Low Franconian, Ripuarian: "Düsseldörp" [ˈdʏsl̩dœɐ̯p] ) is the capital city of the German state of North Rhine-Westphalia and the seventh most populous city in Germany.
North Rhine-Westphalia