Polish bass Leonard Andrzej Mróz died at the age of 73 on Dec. 13 in Warsaw, Poland.  

Mróz was born on Jan. 19, 1947, and studied in Warsaw. He went on to win several international competitions including the sixth Polish National Vocal Competition. S. Moniuszko in Wrocław as well as competitions in Munich, Geneva, and Amsterdam.

He followed it with an international career performing with such renowned companies as Glyndebourne, Polish National Opera, and Carnegie Hall, among others. He would make appearances in Vienna, Budapest, Prague, Moscow, Paris, Parma, Mexico, Sofia, Philadelphia, Germany, Great Britain, Switzerland, Austria, the Netherlands, Italy, London, Lisbon, Cleveland, Leipzig, Dresden, Paris, Berlin, and Moscow.

Mróz was known for his Russian repertoire interpretations and was also a great advocate for Polish operas including “Halka” and The Haunted Manor.”

The bass was also associated with the Grand Theater in Warsaw from 1972 to 1988 where he made his debut as Zbigniew in Stanisław Moniuszko’s “The Haunted Manor.”

Following his career as a soloist, he obtained the title of professor of musical arts and taught at the State Music School Fryderyk Chopin in Warsaw and at the Academy of Music in Poznan. In 2016, he was awarded the Silver Medal for Merit to Culture – Gloria Artis.

Mróz left a number of recordings including songs, arias, and oratorios. He also recorded a number of operas including “The Haunted Manor” and “Boris Godunov.”