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.
Separate original construction from later legend
Prague City Tourism’s Legends of Prague page says Mikuláš of Kadaň constructed the original simple mechanism before 1410. It then places Hanuš of Růže later, at the end of the fifteenth century, as the clockmaker who perfected it.
Use chronology to resist a common shortcut
A famous legend can make one name dominate memory. The useful correction is narrower: on this official page, Hanuš belongs to a later stage of the Orloj Story rather than the original mechanism’s construction.
Keep legend and evidence labelled
The same page continues into the dramatic Hanuš narrative. Treat that narrative as legend context while preserving the page’s explicit chronological distinction between Mikuláš and Hanuš.
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