Death of Saint Theodore of Heraclea. He was an up-and-coming general in charge of the Roman army of Emperor Licinius but he embraced Christianity rather than the sure thing of a brilliant military career worshipping pagan idols. He even went out of his way to torch pagan temples. For this he was arrested and thrown into a fiery furnace. As the flames seared around him he was gifted with a beautiful vision of his Heavenly reward and with a smile on his face in total peace, he accepted his martyrdom.
Death of Saint Tressan, an Irish missionary priest who was ordained by Saint Remigius and was sent to tend the flocks of France where he served faithfully in the Diocese of Rheims.
Death of Pope Pellagius II, 63rd successor of Peter. His pontificate lasted eleven years. During this time he sought help from Constantinople because of the constant seige threats of the Lombards. He decreed that priests must recite the Divine Office every day. He died on this date a victim of a widespread plague where the victims died yawning and sneezing.
Death of Pope Pius IX, 255th successor of Peter at the age of 85. His pontificate lasted a phenomenal 32 years, second only to Saint Peter's time of governing the Church. During Pius' papacy he proclaimed the Dogma of the Immaculate Conception, convened the First Vatican Council and declared the Infallibility of the Pope when the Vicar of Christ speaks "ex cathedra." Also, on September 20th, 1870 to avoid further bloodshed, he was forced to agree to allow Rome to become the capital of Italy, surrendering to King Victor Emmanuel the Papal States except for Vatican City, which was shrunk to its present 104-acre site, thus ending over a millennium of the Church ruling the Papal States.