Studied in Bartłomiej Budzyński’s Private Music School in Józefów in the cello class of Professor Tatiana Przybylska and Professor Michał Nyżnyk, in the Karol Kurpiński State Music School no. 4 in Warsaw in the class of Professor Karol Leonowicz (completed in 2002 with a top grade diploma), in the Fryderyk Chopin Secondary State Music School Complex in Warsaw in the cello class of Professor Karol Leonowicz, in the Zenon Brzewski General Music School in Warsaw in the cello class of Professor Stanisław Firlej, in the Henryk Wieniawski General Music School in Łódź in the class of Professor Stanisław Firlej (completed with honours), in the K. & G. Bacewicz Academy of Music in Łódź in the class of Professor Stanisław Firlej (bachelor degree completed with honours), in the K. & G. Bacewicz Academy of Music in Łódź in the class of Professor Stanisław Firlej (master’s degree) and in the class of Professor Michael Flaksman and Jelena Ocic in Mannheim (Germany) under the Erasmus international exchange program.
In 2014 -2015 he was a student of the International Menuhin Music Academy in Coppet (Switzerland).
Marcel Markowski is one of the most prominent and oustanding Polish cellists of the young generation. Markowski is the laureate of many awards and distinctions. He has participated in many master classes in Poland, Germany, Switzerland and the Netherlands with many renowned teachers, including Michael Flaksman, Jelena Ocic, Ivan Monighetti, Dominik Połoński, Tomasz Strahl and Jeroen Reuling, Pablo de Navarran, Niall Brown, Alexander Gebert.
In June 2012 Marcel Markowski became the cello leader in the Sinfonia Varsovia Orchestra. He has performed numerous times under the baton of such acclaimed conductors as: Krzysztof Penderecki, Jerzy Maksymiuk, Alexander Sladkovsky, Benjamin Ellin, Andriy Yurkevich.
He has been a lecturer of the Sinfonia Varsovia Academy, a project intended to refine the playing skills of orchestra musicians.
In 2014 he recorded Mieczysław Weinberg's Cello Concerto with Sinfonia Varsovia and Jerzy Maksymiuk (Anthology of Contemporary Polish Music 1939 -1945). In 2016 he recorded with violinist Jakub Haufa the first studio recording of Krzysztof Penderecki’s Doppio concerto (version for violin and cello) under the baton of the composer himself.