Prince Axel was a pioneer of motor sports in Denmark, president of the Royal Danish Automobile Club from 1920 until 1938. The prince held Denmark's number 10 pilot's licence, acquired in 1912. Business. Prince Axel was a member of the Board and for some time Chairman of the Board of the SAS, Scandinavian Airlines System.
Prince Valdemar of Denmark (27 October 1858 – 14 January 1939) was a member of the Danish royal family. He was the third son and youngest child of Christian IX of Denmark and Louise of Hesse-Kassel. He had a lifelong naval career. He was paternal uncle of Prince Andrew of Greece and Denmark, father of Prince Philip, Duke of Edinburgh