A wooden fortress originally stood at the site of the present Poděbrady Castle. King Ottokar II of Bohemia replaced it by a stone castle, which became the seat of the Lordship of Poděbrady. King John of Bohemia pledged the Lordship and the Castle to Hynek of Lichtenburg in 1345. When in 1350, Hynek's daughter Eliška married Boček I of Poděbrady (d. 1373), the castle came into the possession of the Kunštát family. After Emperor Charles IV gave Poděbrady to Boček as a hereditary possession, Boček called himself Boček of Poděbrady, thereby founding the Poděbrady line of the Kunštát family.
According to legend, King George of Poděbrady, Boček's grandson, was born in the castle. After George's death in 1471, the Castle and Lordship of Poděbrady were inherited by his son, Henry the Younger of Poděbrady, whose heirs had to transfer ownership of both the castle and the lordship to King Vladislaus II in 1495. Both were pledged several times before the loan was repaid by King Ferdinand I. They remained in the possession of the Bohemian Crown until 1839.
The castle was rebuilt several times. Between 1548 and 1580, it was reconstructed to a Renaissance style, after a design by Giovanni and Ulrico Aostalli and Hans Vienna. After the Thirty Years' War, the castle lost most of its importance. In 1723 and 1724, it was reconstructed in a Baroque style under the direction of the builder Franz Maximilian Kanka. Further modifications were made after 1750. Maria Theresa, in her capacity as Queen of Bohemia, stayed at the castle on several occasions. Under her son Joseph II, the castle was the residence of retired Imperial Army officers.
In 1839, the Crown sold the Castle and the Lordship to the Viennese banker Georg Simon Sina (1783–1856). Through marriage, the castle came into the possession of the Counts of Ypsilanti in 1884.
References:The Broch of Gurness is an Iron Age broch village. Settlement here began sometime between 500 and 200 BC. At the centre of the settlement is a stone tower or broch, which once probably reached a height of around 10 metres. Its interior is divided into sections by upright slabs. The tower features two skins of drystone walls, with stone-floored galleries in between. These are accessed by steps. Stone ledges suggest that there was once an upper storey with a timber floor. The roof would have been thatched, surrounded by a wall walk linked by stairs to the ground floor. The broch features two hearths and a subterranean stone cistern with steps leading down into it. It is thought to have some religious significance, relating to an Iron Age cult of the underground.
The remains of the central tower are up to 3.6 metres high, and the stone walls are up to 4.1 metres thick.