Since 1959, part of the castle is occupied by the Aeronautical Museum of Peru (Spanish: Museo Aeronáutico del Perú),[2] previously housed at Las Palmas Air Base.

[1] An urban legend claims that the castle was built by Rospigliosi in order to host King Alfonso XIII during his visit to Peru, with him even requesting the local authorities that he be allowed to build a moat surrounding it to justify the drawbridge that was initially part of the castle's design, which was denied.

[4] Peruvian historian Juan Luis Orrego Penagos claims that, while Rospigliosi was very much eager with his project, his original intent had always been to use it as a family residence for his wife, son and himself.

[4] The Academy of Air Warfare [es] of the Peruvian Air Force subsequently occupied the castle's premises in 1949, which it has continued to operate in since, and the castle served as a filming location for movies of the era, such as Enzo Longhi's La Perricholi (1928), first screened at the Cine Colón.

[4] In 1959, the Aeronautical Museum of Peru was inaugurated in the castle's premises, whose collection includes items owned by aviators such as Jorge Chávez, Pedro Paulet and José Abelardo Quiñones.