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
Prince Augustus Ferdinand of Prussia Prince Augustus Ferdinand of Prussia Prince August Ferdinand of Prussia (; 23 May 1730, Berlin – 2 May 1813, Berlin) was a Prussian prince and general, as well as "Herrenmeister" ("Master of the Knights") of the Bailiwick of Brandenburg of the Order of Saint John. He belonged to the House of Hohenzollern, and was the youngest son of Frederick William I of Prussia by his wife Queen Sophia Dorothea. He was the youngest child of King Frederick William I of Prussia and his wife Sophia Dorothea of Hanover. He was also a younger brother of King Frederick the Great (Frederick