Stunning Pictures of 25 Incredible Medieval Castles Along the Eagles’ Trail

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King Casimir III the Great (1333–1370) erected most of the once formidable fortresses to protect what was Poland’s western frontier, at the time perilously close to the country’s capital city, Krakow.

The castles date mostly to the 14th century and were constructed by order of King of Poland Kazimierz the Great.

They have been named the “Eagles’ Nests,” as most of them are located on large, tall rocks of the Polish Jura Chain featuring many limestone cliffs, monadnocks, and valleys below.

They were built along the 14th-century border of Lesser Poland with the province of Silesia, which at that time belonged to the Kingdom of Bohemia.

Later, the king’s castles passed into the hands of various aristocratic families, together with the adjacent land.

New owners usually did their best to adapt the medieval fortresses or they left the crumble away into ruins.