Saint Dimitrios, also known as Saint Demetrius of Thessalonica, is a Christian martyr and one of the most revered saints in the Eastern Orthodox Church. He is believed to have lived in the 4th century and was known for his strong faith and dedication to spreading Christianity. His feast day is celebrated on October 26th, and he is often depicted in iconography as a soldier, symbolizing his role as a protector of the faith. The city of Thessalonica in Greece is closely associated with Saint Dimitrios, as it is where he was martyred. His relics are housed in the Church of Saint Demetrius, a significant pilgrimage site for Orthodox Christians. Saint Dimitrios is also considered the patron saint of Thessalonica and is invoked for protection against various dangers, including wars and epidemics.