Nitra Castle

48°19′6″N 18°5′11″E / 48.31833°N 18.08639°E / 48.31833; 18.08639 The first fortified center on Castle Hill dates back to the Bronze Age (1,600 BCE).

[1] In the first half of the 9th century, the top of the hill was protected by the wooden palisade.

In the second half of the same century, the Slavs built a massive rampart made of two outer drystone walls (thickness 2 x 3m) with an internal timber structure filled with earth (3m).

The core of the castle is St. Emmeram's Cathedral with the Bishop's residence; the oldest surviving part is the Romanesque Church of St. Emmeram from the 11th century along with two other parts of the cathedral: the originally Gothic Upper Church from the 14th century and the Lower Church from the 17th century.

The originally Gothic Bishop's Palace got its present Late Baroque appearance in the 18th century.