Domoslav was the Dominican monk, living during the reign of last Přemyslids and probably also in the beginning of the reign of John of Luxembourgh. His name was preserved in acrostic of the musical sequenceDe superna yerarchia. The first letters of strophes ctreate words Damozslaus predicator. It is also written in manuscript of The Legend of Saint Ludmila from 1416. Domoslav is also the author of the sequence about Saint WenceslasDulce melos cum concentu and rhyming composition Officium o svatém Václavu a svaté Ludmile (Officium about St.Wenceslas and St.Ludmila).
He was the founder of his own school of poetry. At the same time originated many Czech sequences, that were written either firectly from him or came from his school, e.g.
The oldest record of texts is a compound of Dražický misál (Missal of Dražice) from 1340, the melody to the first sequence of Dulce melos was found in files of archbishop Arnošt z Pardubic from 1363. Melody to the second sequence was found in "Vyšehradský sborník" (Anthology of Vyšehrad) from the second half of 15th century.