Around 1450 CE, Europe and the eastern Mediterranean stood at the intersection of declining medieval powers and emerging regional states. The Byzantine Empire had contracted principally to Constantinople and the Morea, while the Ottoman Empire under Murad II (reign 1421–1444; 1446–1451) dominated much of the Balkans and western Anatolia after victories at Varna (1444) and Kosovo (1448). In western Europe, France under Charles VII (reign 1422–1461) was completing its reconquest during the final phase of the Hundred Years’ War (1337–1453), while Castile, Aragon, Burgundy, and the politically fragmented Holy Roman Empire remained major centers of competing dynastic power. In eastern Europe, the Grand Duchy of Moscow, Novgorod Republic, Tver, and Ryazan remained distinct powers as the Golden Horde (circa 1240s–1502) fragmented into successor khanates.
These shifting political structures accelerated during the years surrounding 1450. Mehmed II (reign 1444–1446; 1451–1481) captured Constantinople in 1453, ending Byzantine imperial rule and strengthening Ottoman control of the eastern Mediterranean and Black Sea approaches. Farther east, the Crimean Khanate and Great Horde emerged from the fragmentation of Mongol power, while the Qara Qoyunlu under Jahan Shah (reign 1438–1467) dominated much of Azerbaijan, Iraq, and western Iran. In the south, the Mamluk Sultanate (1250–1517) remained the major power in Egypt and Syria. Together, these developments illustrate a period of political consolidation, competition, and realignment that helped reshape the transition from the late medieval to the early modern world.