sentences:  After the Sack of Constantinople in 1204 AD by Roman Catholic Crusaders as part of the fourth crusade, much of Asia Minor was brought under Roman Catholic rule and the Latin Empire of the East was established.As the conquest by the European crusaders was not exclusive to the fourth crusade, many various kingdoms of European rule were established.After the fall of Constantinople to the Latin West, the Empire of Nicaea was established, which was later to be the origin of the Greek monarchy that defeated the Latin forces of Europe and re-established Orthodox Monarchy in Constantinople and Asia Minor.