Saint Eric, also known as Eric IX of Sweden, was a king and martyr who is venerated in the Christian tradition. He ruled during the 12th century and is credited with promoting Christianity in Sweden. His reign is marked by efforts to unify the country and strengthen the church's influence. According to legend, Saint Eric was killed in battle while defending his faith and kingdom. He is often depicted in art wearing royal attire and holding a cross. His feast day is celebrated on May 18, and he is recognized as the patron saint of Sweden.