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 Henry, Duke of Gloucester fifth in the line of succession to the throne, behind his grandfather, father and two elder brothers. He was baptised at the private chapel of Windsor Castle on 17 May 1900, by Randall Thomas Davidson, Bishop of Winchester, and his godparents were: Queen Victoria (his great-grandmother); the German Emperor (his cousin, for whom Prince Albert of Prussia stood proxy); Princess Henry of Battenberg (his paternal great-aunt); the Duchess of Cumberland (his paternal great-aunt, whose sister, his grandmother the Princess of Wales represented her); Prince George of Greece (his cousin, for whom Prince Henry's paternal grandfather the Prince of Wales stood