Principality of Achaea was created in 1205.
Principality of Achaea ended in 1432.
Achaea was created in 2011.
Achaea echo was created in 1858.
Achaea janata was created in 1758.
Achaea - Roman province - was created in 146.
Principality of Arbër was created in 1190.
Principality of Salm was created in 1802.
Principality of Gjirokastër was created in 1386.
Principality of Krk was created in 1451.
Principality of Samos was created in 1835.
Principality of Halberstadt was created in 1648.
Principality of Beloozero was created in 1238.