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 Hubertus of Prussia he married Baroness Maria Anna von Humboldt-Dachroeden (9 July 1916 – 24 September 2003) in Oels, Schlesien. They divorced a little over a year later in early 1943 (the same year she would later give birth to Hubertus' cousin, Ernest Augustus', illegitimate son), and on 5 June of that year, he married again to Princess Magdalena Reuss of Köstritz (20 August 1920 – 10 October 2009). They had two daughters: Prince Hubertus died of appendicitis on 8 April 1950 at Windhoek, South West Africa. He was buried in Hohenzollern Castle. Prince Hubertus of Prussia Prince Hubertus of Prussia (Hubertus Karl