Very much so, and is also held responsible for the spread of haemophilia through European royal families. To give you an idea, Queen Victoria's close relations included:
Edward VII - father of King George V of the UK, married to Alexandra of Denmark, daughter of King Christian IX, brother of King George I of Greece and aunt to Tsar Nicholas II of Russia (his mother was Alexandra's sister). His daughter Maud of Wales married the King of Norway, her grandson is Harald V, as Biblio mentioned.
Victoria - married Kaiser Frederick III of Prussia, mother of Kaiser Bill
Alice - mother of Tsarina Alexandra of Russia, the last Tsarina
Alfred - father of Queen Marie of Romania
Arthur - father of Margaret, first wife of King Gustaf VI Adolf of Sweden, 5 children then died - her grandchildren include King Carl XVI Gustaf of Sweden (the current King), Queen Margrethe II of Denmark and Queen Anne-Marie of Greece, the exiled monarch', King Constantine's wife.
Beatrice - mother of Victoria, Queen of Spain, grandmother of King Juan Carlos I