St. Adalbert of Prague (c. 956–997), also known as St. Wojciech, was a Bohemian missionary bishop and one of the first Christian martyrs of Eastern Europe. Born into a noble family in Bohemia, he became Bishop of Prague but faced resistance due to his reform efforts against pagan practices and corruption. Seeking guidance, he joined a Benedictine monastery in Rome, but Pope John XV sent him back to Prague to continue his work.

Adalbert’s dedication led him to Prussia, where he tried to convert the pagan Baltic tribes. However, his mission ended in martyrdom in 997 when he was killed by pagan warriors. Known for his deep spirituality and courage, St. Adalbert’s life inspired the Christianization of Eastern Europe, and he is venerated as the patron saint of Poland, Bohemia, Hungary, and Prussia. His feast day is celebrated on April 23.