Construction of the Royal Castle in Poznań was probably started by Przemysł I in 1249 on hill later called Góra Zamkowa. The first building was a habitable tower made of bricks with a well inside, and the rest of the hill was surrounded by a rampart with a palisade. A small ducal residence was incorporated into the system of city walls in the late 13th century.
The son of Przemysł I, Przemysł II, hoping for reunification of Poland under his rule decided to build a larger castle, more proper for a king. In 1295 Przemysł became king of Poland, but he was assassinated a year later. The castle wasn"t finished. Work started by Przemysł was continued by a branch of the Piasts from Głogów ruling in Greater Poland, and finished before 1337. The castle served as the residence of prince Casimir, then-governor of Greater Poland.
In 1337, the Royal Castle in Poznań was the largest castle in the Polish Kingdom, modelled after the palatium of Henry I the Bearded in Legnica. The castle consisted of a tower built by Przemysł I and a huge building (63,0 m x 17,5 m) with three levels and a basement. It is uncertain whether the castle"s characteristic roof, consisting of four parts, existed at that time.
Basements served as prisons and for storage of wines, and on the ground floor there were charring rooms. Those two condignations were covered by vaults. Two higher floors probably had wooden ceilings. On the edges of first floor were representative chambers, and between them were habitual rooms. The whole second floor was occupied by achamber for 2000 guests. On the south end of the large building was a defense tower. Since the reign of Władysław I the Elbow-high the castle served as the residence of starosta generalny of Greater Poland. Later only one king, Władysław II Jagiełło, ordered some minor work in castle.
During the fire of Poznań in 1536 the castle also burned. It was rebuilt in the renaissance style by the governor of Greater Poland, Andrzej II Górka. In the next years the oldest part of castle was transformed into a kitchen. The castle was later destroyed during the Swedish invasion, sacked in 1704 by the armies of Russia and Saxony during Great Northern War, and in 1716 during Confederation of Tarnogród by the confederates. The castle was partially renovated in 1721, but it didn"t stop the devastation. The last starosta generalny, Kazimierz Raczyński, rebuilt the remains of the medieval buildings into an archive (finished in 1783). In 1804, after The Second partition of Poland, Prussians demolished the southern part of the castle, replacing it by buildings which, together with Raczyński"s archive served as the office of the local Regierungsbezirk. Later on the castle was also as a seat of the Court of Appeals and the State Archive (the castle served as an archive until 1939). During the battle for the Poznań Citadelle, in February 1945, Przemysł Hill was in line of artillery fire, and the remaining part of the castle was demolished.
In the years 1959–1964 Raczyński"s archive and part of Prussian building were rebuilt, and on base of the oldest tower stands a small pavilion called the Royal Kitchen (Kuchnia Królewska). Today the Castle holds a Museum of Utilitary Art.
In 2002, a committee for rebuilding of the castle was founded. Still extant from previous construction are two-meter-wide supports from the thirteenth and fourteenth centuries, the inner walls of the basement and the western wall from the same period, and a slightly newer eastern wall, now integrated into Raczyński"s Building. On the surviving part of the castle are three plaques: the foundation plaque of Kazimierz Raczyński from 1783, one from 1993 marking the five-hundredth anniversary of homage of Grand Master of the Teutonic Order, Johann von Tiefen, and another plaque commemorating the seven-hundredth anniversary of the coronation of Przemysł II.
On 20 December 2010, work began on the total reconstruction of the demolished parts of the castle, and meticulous restoration of the surviving buildings.References:
Ängsö Castle was first named as "Engsev" in a royal charter by king Canute I of Sweden (r. 1167-1196), in which he stated that he had inherited the property after his father Eric IX of Sweden. Until 1272, it was owned by the Riseberga Abbey, and then taken over by Gregers Birgersson.
From 1475 until 1710, it was owned by the Sparre family. The current castle was built as a fortress by riksråd Bengt Fadersson Sparre in the 1480s. In 1522, Ängsö Castle was taken after a siege by king Gustav Vasa, since its owner, Fadersson's son Knut Bengtsson, sided with Christian II of Denmark. However, in 1538 it was given by the king to Bengtsson's daughter Hillevi Knutsdotter, who was married to Arvid Trolle.
In 1710, the castle was taken over by Carl Piper and Christina Piper. Ängsö Castle was owned by the Piper family from 1710 until 1971, and is now owned by the Westmanna foundation. The castle building itself was made into a museum in 1959 and was made a listed building in 1965. It is currently opened to visitors during the summers.
The castle is a cubical building in four stores made by stone and bricks. The lower parts is preserved from the middle ages. It was redecorated and expanded in the 1630s. The 4th storey as well as the roof is from the expansion of Carl Hårleman from 1740-41. It gained its current appearance in the 1740s.