Legend vs evidence
The Orloj’s Original Mechanism Predates Master Hanuš
On Prague City Tourism’s Legends of Prague page, the original simple mechanism is credited to Mikuláš of Kadaň before 1410, while Hanuš appears later as the clockmaker who perfected it.
Old Town Astronomical Clock

The same official legend page places Mikuláš of Kadaň before Hanuš in the clock’s chronology.
Hanuš was not first in the official chronology
Prague’s Astronomical Clock is surrounded by stories, and one famous name can easily swallow the others. Prague City Tourism’s own Legends of Prague page gives a useful sequence: it says Mikuláš of Kadaň constructed the original simple mechanism before 1410, while Hanuš of Růže appears later, at the end of the fifteenth century, as the clockmaker who perfected it.
Hanuš belongs to a later chapter
The popular habit of linking the whole Orloj with Master Hanuš compresses several stages into one name. Prague City Tourism gives a clearer sequence: an earlier mechanism associated with Mikuláš of Kadaň, followed later by Hanuš of Růže and his improvements.
History and legend can sit side by side
The same page continues with the darker legend of Hanuš. That story belongs to Prague folklore, but it is not the same thing as the clock’s construction chronology. The Orloj was altered and repaired over centuries, which makes the point visible in the object itself: a machine this complex has more than one chapter. Remembering two names in order — Mikuláš first, Hanuš later — already makes the story more accurate without making it any less mysterious.
Reviewed visuals
See the story
Supporting images selected in the Prague Stories visual review. Context images are labeled so they are not mistaken for documentary proof of the exact subject.

Exact detailed Orloj façade is visibly shown in Old Town Square.

Exact Prague Astronomical Clock in Old Town Square is visibly shown.
Quick facts
- The source credits Mikuláš of Kadaň with the original simple mechanism.
- It places that construction before 1410.
- Hanuš of Růže appears later in the chronology.
- The page says Hanuš perfected the mechanism at the end of the fifteenth century.
Questions
Did Hanuš build the original simple mechanism according to this Prague City Tourism page?
No. The page credits Mikuláš of Kadaň with the original simple mechanism before 1410.
Where does Hanuš fit?
The page says he perfected the mechanism at the end of the fifteenth century.
Sources & further reading
- About the Old Town Astronomical Clock — Legends of Prague — Prague City Tourism