The original instrument was built by the organ builder Kašpar Welzel in 1763. In 1907 the instrument was rebuilt (a new eight-rank instrument of poor technical and sound quality was built into the original organ case). After 1950 the instrument ceased to be used, as the chapel became a grain and hay store.
In 2008, thanks to a state subsidy (CZK 2,300,000), generous support from the Municipal Authority (CZK 459,000), a subsidy from the Hradec Králové Region (CZK 150,000) and a public collection (CZK 91,000), the reconstruction of the organ was successfully completed in 2009. The work was undertaken by the Kánský – Brachtl company from Krnov.
The functional part of the organ in Smiřice was reconstructed according to the preserved traces on the original organ case and on the basis of archival documents. The preserved skeleton of the organ case was very carefully restored to its presumed original condition, including the surface treatment and the addition of carvings. The instrument is based, both structurally and sonically, on the surviving designs of the organ workshop in Kralice. It has a built-in playing table,
two manuals, a pedal, 12 registers and over 700 pipes. Although the instrument is relatively small, it offers a wealth of possibilities for solo playing as well as for accompanying other instruments or singing. The individual registers are stylistically intonated and the overall plenum admirably fills the acoustically very interesting chapel space. It can be stated without exaggeration that the Kánský – Brachtl organ company has built a masterful instrument in every respect.