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 Frederick of Prussia (1794–1863) Prince Frederick of Prussia (1794–1863) Prince Friedrich Wilhelm Ludwig of Prussia (30 October 1794 – 27 July 1863), known in English as Frederick, was a Prussian prince, general of the royal cavalry, and division commander. Born in Berlin, Frederick was the son of Prince Louis Charles of Prussia and Duchess Frederica of Mecklenburg-Strelitz, later Queen of Hanover, nephew of King Frederick William III of Prussia and stepson of Ernest Augustus, King of Hanover. Princess Charlotte of Wales was interested in Frederick in 1814 and hoped to marry him. The pair met several times. However, the Prince suddenly got engaged to