Uuemõisa estate (Neunenhof) is first mentioned in 1539 and then belonged to the Bishopric of Saare-Lääne. During the Swedish time it for a long period of time was a part of the vast domains of the De la Gardie family. The last owner before the Estonian land reform of 1919 was Eugenie Mikhailovna Shakhovskaya, the world's first female fighter pilot. After the Estonian declaration of independence, it was used by the Estonian Ministry of Defence. During the Soviet occupation of Estonia, the Red Army occupied the buildings. The current manor was built in mid 19th-century, with additions made in 1921-1923 by architect Karl Burman.References:
The Peace Palace (Vredespaleis) is an administrative building and often called the seat of international law because it houses the International Court of Justice (which is the principal judicial body of the United Nations), the Permanent Court of Arbitration, the Hague Academy of International Law, and the extensive Peace Palace Library. In addition to hosting these institutions, the Palace is also a regular venue for special events in international policy and law. The Palace officially opened on 28 August 1913, and was originally built to provide a symbolic home for the Permanent Court of Arbitration, a court created to end war which was created by treaty at the 1899 Hague Peace Conference.