Alfred, Duke of Saxe-Coburg and Gotha (Alfred Ernest Albert; 6 August 1844 – 30 July 1900) was the third Duke of Saxe-Coburg and Gotha between 1893 and 1900. He was the second son of Queen Victoria and Prince Albert. He died of throat cancer in Coburg, Germany in 1900 age 55 he died six days before his 56 th birthday his wife Grand Duchess Maria Alexandrovna of Russia out lived him by 20 years dying age 67 eight days after her 67 th birthday on 24 October 1920 the only child of Tsar Alexander II to survive the Russian Revolution died in her sleep from a heart attack .