 In August 2004, representatives of Friedrich Wilhelm's eldest son Karl Friedrich, Hereditary Prince of Hohenzollern, accused Radu of using the Hohenzollern name without permission as well as of having demanded "considerable" sums of money from whoever may be interested in buying it.Karl Friedrich also warned Radu that the Hohenzollern family would take "legal measures" in case these things were to happen again and demanded that he cease to use the title of "Prince of Hohenzollern-Veringen".In a 2009 interview, Karl Friedrich re-iterated these demands and stated that his father has no right to issue titles in a republic, calling Radu's title "of Hohenzollern-Veringen" a "farce."