The palace is most famous though for the role it played in the reign of the last tsar, Nicholas II. He and his wife Alexandra Feodorovna always loved the palace and decided to make it their permanent residence after the events of Bloody Sunday, which made the Winter Palace dangerous for them. They remodeled the former two-story ballroom into the Maple Room and the New Study and added rooms for their children on the floor above. To the horror of the court, Alexandra, and her architect Meltzer, chose a then-modern style of decoration, Jugendstil or Art Nouveau, considered by the aristocracy to be "middle class" and less than "Imperial". One of these most famous rooms is Alexandra's Mauve Room .