Events Pre-1600 308 – At Carnuntum, Emperor emeritus Diocletian confers with Galerius, Augustus of the East, and Maximianus, the recently returned former Augustus of the West, in an attempt to end the civil wars of the Tetrarchy. 1028 – Constantine VIII dies, ending his uninterrupted reign as emperor or co-emperor of the Byzantine Empire of 66 years. 1100 – Henry I of England marries Matilda of Scotland, the daughter of Malcolm III of Scotland and a direct descendant of the Saxon king Edmund Ironside; Matilda is crowned on the same day. 1215 – The Fourth Council of the Lateran meets, defining the doctrine of transubstantiation, the process by which bread and wine are, by that doctrine, said to transform into the body and blood of Christ. 1500 – Treaty of Granada: Louis XII of France and Ferdinand II of Aragon agree to divide the Kingdom of Naples between them. 1572 – Tycho Brahe observes the supernova SN 1572.
Events Pre-1600 308 – At Carnuntum, Emperor emeritus Diocletian confers with Galerius, Augustus of the East, and Maximianus, the recently returned former Augustus of the West, in an attempt to end the civil wars of the Tetrarchy. 1028 – Constantine VIII dies, ending his uninterrupted reign as emperor or co-emperor of the Byzantine Empire of 66 years. 1100 – Henry I of England marries Matilda of Scotland, the daughter of Malcolm III of Scotland and a direct descendant of the Saxon king Edmund Ironside; Matilda is crowned on the same day. 1215 – The Fourth Council of the Lateran meets, defining the doctrine of transubstantiation, the process by which bread and wine are, by that doctrine, said to transform into the body and blood of Christ. 1500 – Treaty of Granada: Louis XII of France and Ferdinand II of Aragon agree to divide the Kingdom of Naples between them. 1572 – Tycho Brahe observes the supernova SN 1572.