The guest appartment was occasionally used by Cecilie's older sister, Queen Alexandrine of Denmark. For example, she was a guest at Cecilienhof for the confirmations of the crown prince and queen's children in 1927 and 1934, as well as for the wedding of the crown prince and queen's second son, Luis Ferdinand, to Kira of Russia in 1938. At times, the eldest daughter of the crown prince and princess, Cecilie, used the rooms for herself. (Tina Czeninga)