EN
The article presents the results of research conducted at the Roman 'Archivio Generale delle Scuole Pie', as well as Polish, Slovak and Hungarian State and Piarist archives. This research has made it possible to establish with relative accuracy the details of the biography of Damian Stachowicz, one of the most prominent Polish composers of the second half of the seventeenth century. At the age of 17, Stachowicz entered the Piarist monastery in Rzeszów, taking the name of Damian of Holy Trinity. He was educated at the local Piarist school. From 1678 he lived at the monastery in Prievidza, where he was educated in the areas of philosophy and theology, taught a grammar class, and most probably continued to be involved in music as well, since a large number of his compositions is mentioned in the musical inventory of that monastery. During 1681-1690 he was active in Warsaw, where he was ordained into priesthood. From 1691 until his death he lived in Lowicz, fulfilling the duties of choirmaster, teacher of rhetoric and theology, prefect of the school (from at least 1696), and finally vice-rector of the collegium (from 1698). He died on 27 November 1699. Stachowicz's known legacy includes genres of church music for liturgical and non-liturgical texts: psalms (8), a litany (1), a requiem (1), motets (2) and concerti (2). Out of fourteen compositions, three are preserved in incomplete form, and further two only in fragments.