Saint Erik, also known as Saint Eric, is the patron saint of Sweden. He is believed to have been a king in the 11th century and is celebrated for his efforts to spread Christianity in the region. His life and legacy are commemorated on May 18th, which is recognized as his feast day. According to legend, Saint Erik was martyred for his faith, and his remains are said to be buried in Uppsala Cathedral. He is often depicted in art wearing royal attire and holding a cross, symbolizing his commitment to spreading the Christian faith throughout Scandinavia.