MikulÃ¡à ¡ of Kadaà  () (born 1350, Kadaà  â died 1419, Prague) was an Imperial clockmaker.
With Jan à  indel, MikulÃ¡à ¡ designed the oldest part of the Orloj (which also known as Prague Astronomical Clock).
The clock was modified by Master Hanuà ¡, who was mistakenly identified as the creator of the clock in a legend related by Alois Jirásek.