Prince Henry of Prussia (1862–1929) became the club's patron. Henry was interested in motor cars as well and supposedly invented a windshield wiper and, according to other sources, the car horn. In his honor, the "Prinz-Heinrich-Fahrt" (Prince Heinrich Tour) was established in 1908, like the earlier Kaiserpreis a precursor to the German Grand Prix. Henry and his brother William gave patronage to the Kaiserlicher Automobilclub (Imperial Automobile Club). Henry also was an early proponent of introducing submarines and airplanes. He had merchant ships converted into seaplane tenders for operations in the Baltic Sea. Henry respected his brother, but this attitude was not returned in the
Louis Ferdinand, Prince of Prussia Friedrich, Prince of Prussia became the pretender to the thrones and head of the Hohenzollern family upon Louis Ferdinand's death in 1994. After the reunification of Germany, Louis Ferdinand arranged to have the remains of several Hohenzollern members reinterred at the imperial vault in Potsdam. Prince Ferdinand of Hohenzollern, a member of the senior Swabian branch of the Hohenzollern dynasty, Hohenzollern-Sigmaringen, is his godson. Louis Ferdinand, Prince of Prussia Louis Ferdinand Victor Edward Albert Michael Hubert, Prince of Prussia (German: "Louis Ferdinand Viktor Eduard Albert Michael Hubertus Prinz von Preußen"; 9 November 1907 – 26 September 1994) was a member