The Krögelstein castle ruins are located in the Krögelstein district of the town of Hollfeld. The noble free from Krögelstein, which were perhaps related to the also noble whale pots, are documented for the period from 1149 to 1239. It can be assumed that the Spornburg already existed at this time, but it was only mentioned in a document in 1328 as castrum. After the family died out in the middle of the 13th century, the castle came to the Bamberg bishopric. Bishop Wulfing von Stubenberg (1304–1319) pledged it in 1313 to the Bamberg cathedral chapter. Since 1400, the castle was predominantly owned by Bamberg officialsmanaged. It has been proven that it was in the hands of the von Aufseß family, then the von Giech family until it was destroyed in 1523.
On October 17, 1500, the Bamberg Prince-Bishop Heinrich III Groß von Trockau (1487–1501) returned the castle from the cathedral chapter. He gave it to Dietz von Giech as a man loan from the Bamberg monastery. Georg Wolf von Giech was married to Ottilie von Absberg, the sister of the notorious robber baron Hans Thomas von Absberg. Since he often gave shelter to his brother-in-law at the castle, the castle was destroyed in 1523 by the Swabian Federation. There was no reconstruction.
All that remains of the former castle is a buttress arch with three window slots on a dolomite rock west of the parish church.
The parish church is the former castle chapel, built around 1250, which has been used as a parish church since 1421. It has today's shape from Georg Dietrich von Giech zu Wiesentfels, Niederlind and Krögelstein. He died on July 26th, 1607. A bronze epitaph commemorates him. The keystone in the choir vault, dating back to 1607, also bears the Giech coat of arms.
References:The Jan Hus Memorial stands at one end of Old Town Square. The huge monument depicts victorious Hussite warriors and Protestants who were forced into exile 200 years after Hus, and a young mother who symbolises national rebirth. The monument was so large that the sculptor designed and built his own villa and studio where the work could be carried out. It was unveiled in 1915 to commemorate the 500th anniversary of Jan Hus' martyrdom. The memorial was designed by Ladislav Šaloun and paid for solely by public donations.
Born in 1369, Hus became an influential religious thinker, philosopher, and reformer in Prague. He was a key predecessor to the Protestant movement of the sixteenth century. In his works he criticized religious moral decay of the Catholic Church. Accordingly, the Czech patriot Hus believed that mass should be given in the vernacular, or local language, rather than in Latin. He was inspired by the teachings of John Wycliffe.