314 Roman Emperor Licinius was defeated by
Constantine I at the Battle of Cibalae, losing his European territories.
Co-author of the Edict of Milan that granted official toleration to Christians
in the Roman Empire, for the majority of his reign he was the rival of
Constantine I until he was finally defeated at the Battle of Adrianople, and
was executed on Constantine's orders.
451 the fourth Ecumenical Council of the
Roman Catholic Church ruled that Jesus Christ is "in two natures" in
opposition to the doctrine of Monophysitism.
876 Charles the Bald is defeated
at the Battle of Andernach.
1200 Isabella of Angoulême, second wife of King
John, was crowned Queen consort of England. Isabella had five children by the
king including his heir Henry who succeeded John as Henry III of England. In
1220 Isabella married Hugh X of Lusignan, Count of La Marche, by whom she had
another nine children.