Overview
The Duchy of Croatia was a medieval state established around 700 CE by White Croats who migrated into the former Roman province of Dalmatia. It comprised the coastal part of modern-day Croatia, excluding Istria, and a significant portion of the mountainous hinterland. The Duchy had several seats, including Klis, Solin, and Knin. It was a focal point of competition between the Byzantine and Carolingian Empires, and also engaged in rivalries with Venice, the Bulgarian Empire, and the Arabs. The Duchy experienced periods of vassalage and de facto independence until Duke Branimir's recognition as an independent ruler in 879. Around 925 CE, during Tomislav's rule, the Duchy of Croatia became a kingdom.
Historical Periods
Duchy of Croatia (741–787)
741 CE – 787 CE
Area: 21,018 km²
Duchy of Croatia (788–792)
788 CE – 792 CE
Area: 20,690 km²
Duchy of Croatia (793–805)
793 CE – 805 CE
Area: 20,760 km²
Duchy of Croatia (850–875)
850 CE – 875 CE
Area: 20,875 km²
Duchy of Croatia (876–881)
876 CE – 881 CE
Area: 20,945 km²
Duchy of Croatia (882–886)
882 CE – 886 CE
Area: 20,690 km²
Duchy of Croatia (887–895)
887 CE – 895 CE
Area: 20,945 km²
Duchy of Croatia (896–897)
896 CE – 897 CE
Area: 20,760 km²
Duchy of Croatia (898–899)
898 CE – 899 CE
Area: 20,945 km²
Duchy of Croatia (900–910)
900 CE – 910 CE
Area: 20,875 km²
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