Short answers, pulled from the story.
Grand Duke Alexander Alexandrovich entered the world on the 10th of March 1845 inside the Winter Palace of Saint Petersburg. He was born as the second son and third child of Tsesarevich Alexander and his first wife Maria Alexandrovna.
Alexander III ascended to the throne following the assassination of his father on the 13th of March 1881. He immediately reversed liberal policies before they could even be published to strengthen personal control over the vast country.
Foreign Minister Nikolay Girs served Alexander III from 1882 until 1895 and established peaceful policies that earned the Tsar the title of The Peacemaker. A major achievement came in 1885 when tensions with Great Britain regarding India were resolved and he signed the Reinsurance Treaty with Berlin in 1887.
On the 2nd of June 1866 Alexander traveled to Copenhagen to visit Princess Dagmar of Denmark who converted to Orthodox Christianity. Her new name became Maria Feodorovna after their marriage in the Grand Church of the Winter Palace.
Alexander died in the arms of his wife on the afternoon of the 1st of November 1894 at age 49. His physician Ernst Viktor von Leyden stood nearby during the final moments as he suffered from terminal kidney disease known as nephritis.