Princess Louise of Prussia in Baden, and everyone spoke with affectionate pride of their grand duke and duchess in Constance, where the couple had a summer residence. Louise was a great friend of Alice, Grand Duchess of Hesse, her sister-in-law's younger sister; i.e., Alice was the sister of Victoria, Louise's brother Frederick's wife, both sisters being daughters of Queen Victoria. The two often visited each other. In Queen Victoria's letters, she and Frederick were always referred to with pleasure or sympathy as "good Fritz and Louise of Baden". Though friends as young girls, Louise and her sister-in-law Victoria, Princess Royal ("Vicky") always had a
Princess Helena Adelaide of Schleswig-Holstein-Sonderburg-Glücksburg who had died on the Russian front, a service which the monarch refused to attend. In 1942, Helena made efforts to convince Prince Knud of Denmark to persuade the monarch to allow Nazi members in to the Danish government. Princess Helena is not considered to have been a regular German agent, but rather an informer and a contact on informal basis. After the war, owing to Princess Helena being a member of the Royal house, she was not brought to trial, as any punishment was at the discretion of the King. He instead exiled her from Denmark on 30 May