Polish Mixed Choir Collegium Canticorum Collegium Canticorum was established in 1986 as a mixed choir representing Polish ethnic minority in the Czech Republic, so most singers are amateurs and Polish with the Czech citizenship. The choir performs a wide range of repertoire, gives secular as well as sacral concerts and also has recorded some own records. Colegium Canticorum has participated in many festivals in the Czech Republic, Poland, Hungary, Great Britain, Greece, Switzerland, Slovakia, and Italy.

Its most valuable achievements are "Trés bien" award in an international festival in Montreux, Switzerland (2005), the 1st award in the A. Bruckner´s International Choir Festival in Linz, Austria (2007), gold and silver medal in the International Choir Festival "Festival of Songs" in Olomouc, the Czech Republic (2016).

Since 2009 the conductor and the choir artistic director has been Anna Szawińska, Master of Art at University of Silesia in Katowice, Poland. At present she is finishing Doctoral Study Programme at University of Warmia and Mazury in Olsztyn, Poland. Choir rehearsals take place in Czech Cieszyn (Teschen). The town itself is divided by a state border formed by the River Olza. The singers come from the Czech part of Teschen-Silesian region called Zaolzie - that means Behind The River Olza.