Queen Victoria's Schleswig-Holstein grandchildren, Prince Christian Victor, Princess Helena Victoria, and Prince Albert in front. Princess Marie Louise standing in back. Of these grandchildren only one, Prince Albert, had children, but his daughter was illegitimate and placed with a foster family soon after birth, effectively ending Helena's branch of Queen Victoria's family tree.
Frederick VIII (1843 – 1912) was King of the Kingdom of Denmark from 1906 to 1912. Frederick's parents were Prince Christian of Schleswig-Holstein-Sonderburg-Glücksburg & Louise of Hesse-Kassel. He was the second Danish monarch of the House of Glücksburg. Before his accession to the throne at age 63, he served as crown prince for 43 years. During the long reign of his father, King Christian IX, he was largely excluded from influence & political power.