The Princely Palace was the residence of the Counts of Celje, later Princes of Celje, who gradually expanded and extended it from the late fourteenth century onwards.

The central part of the palace was a two-storey residential building with a trapezoidal ground plan. It contained two knights’ halls. On the north side, an external passage connected it to two towers. The tower overlooking the moat housed the count’s chamber, with a chapel above it.

The surviving architectural features attest to an exceptionally ambitious noble residence, built with the involvement of the Celje builders’ workshop under the direction of master builder Hans Melfrid.

Today, the Princely Palace is one of the two exhibition venues of the Celje Regional Museum. Among its displays is the permanent exhibition The Counts of Celje, devoted to the history and legacy of one of medieval Europe’s most important noble families.