Prince Henry and Princess Irene of Hesse

Prince Henry of Prussia ( 14 August 1862 – 20 April 1929) was a younger brother of German Emperor William II and a Prince of Prussia. He was also a grandson of Queen Victoria. A career naval officer, he held various commands in the Imperial German Navy and eventually rose to the rank of Grand Admiral and Generalinspekteur der Marine.
Princess Irene of Hesse and by Rhine ( 11 July 1866 – 11 November 1953), later Princess Henry of Prussia, was the third child and third daughter of Princess Alice of the United Kingdom and Louis IV, Grand Duke of Hesse and by Rhine.

Children:
Prince Waldemar Wilhelm Ludwig Friedrich Viktor Heinrich of Prussia (20 March 1889 - 2 May 1945)
Prince Wilhelm Viktor Karl August Heinrich Sigismund of Prussia (27 November 1896 - 14 November 1978)
Prince Heinrich Viktor Ludwig Friedrich of Prussia (9 January 1900 - 26 February 1904)

Henry and Irene with  son Waldemar