Záboj and Slavoj are two invented national heroes of the Czech past, two minstrel-warriors.
[1] They are found in Václav Hanka's spurious medieval Manuscript of Dvůr Kralové, allegedly "discovered" in 1817 in the tower of a local church and not exposed as a literary hoax, by Jan Gebauer in Masaryk's journal Athenaeum, until 1886.
This article about an opera or opera-related subject is a stub.
You can help Wikipedia by expanding it.