The earliest official mention of building a fortress in Waldau comes from a chronicle dating to 1258. The name of the castle derives from the Baltic Prussian language, where it meant 'to own'. And in fact, the surrounding lands belonged to two Prussian landowners: Brulant and Diabel, who were called 'tenants' or 'dukes'. In 1264, the dukes were obliged by the Teutonic Knights to set up an inn, in which Teutonic knights, clergymen and soldiers would stay. There, travelling merchants would spend time discussing the ups and downs of commerce over a pint of barley beer or a bottle of cider.
When the lands of Nadrovia and Sudovia had been occupied by the tribe of Yotvingians, the border between the Monastic State of the Teutonic Order and Lithuania moved eastwards. As a result, the fortress of Waldau ceased to serve a defensive role. In 1457 the old building was converted into a residential castle, which from then on served as a summer residence of the Grand Master of the Teutonic Order. When the Order was secularized in 1525, the castle turned into a seat for the administrative authorities in the district of Waldau. In 1858 an agricultural school was established in the castle. Afterwards the castle was completely redesigned and changed into a popular school for teachers.
The history of Waldau Castle contains one event which, on the initiative of local people, was commemorated in 1997 by placing a plaque on the walls of the castle. On 17th (27th) May 1697, the castle hosted Russian emissaries, headed by Admiral Franc Jakovlewitz Lefort (1656 - 1699). The Tsar's chronicler wrote on that day: 'Tsar Peter I arrived on this day to enquire about the well being of the emissaries and to finally confirm the meeting ceremony with Kurfürst (The Prince Elector of the German Reich). In the evening, Tsar Peter I left for Königsburg and the Russian emissaries set off from Waldau early morning the next day.'
Today the castle in Nizovye, despite its old age, makes a great impression on the visitors. Parts of the former castle outbuildings have remained until today and the castle itself still houses an agricultural school.
References:Redipuglia is the largest Italian Military Sacrarium. It rises up on the western front of the Monte Sei Busi, which, in the First World War was bitterly fought after because, although it was not very high, from its summit it allowed an ample range of access from the West to the first steps of the Karstic table area.
The monumental staircase on which the remains of one hundred thousand fallen soldiers are lined up and which has at its base the monolith of the Duke of Aosta, who was the commanding officer of the third Brigade, and gives an image of a military grouping in the field of a Great Unity with its Commanding Officer at the front. The mortal remains of 100,187 fallen soldiers lie here, 39,857 of them identified and 60,330 unknown.