What year was Prince Henry of the Netherlands's mother born?
Prince Henry of the Netherlands (1820–1879) Prince William Frederick Henry of the Netherlands (Dutch: Willem Frederik Hendrik; 13 June 1820 – 14 January 1879) was the third son of King William II of the Netherlands and his wife, Grand Duchess Anna Pavlovna of Russia. He was born at Soestdijk Palace.
Princess Helena Victoria of Schleswig-Holstein Princess Victoria Louise Sophia Augusta Amelia Helena of Schleswig-Holstein (3 May 1870 – 13 March 1948), known as Princess Helena Victoria, was a granddaughter of Queen Victoria of the United Kingdom.