Principality of Regensburg ended in 1810.
Principality of Regensburg was created in 1803.
Regensburg ended in 1803.
Bishopric of Regensburg ended in 1803.
Regensburg Synagogue ended in 1938.
Principality of Bitlis ended in 1847.
Principality of Trubetsk ended in 1566.
Principality of Halberstadt ended in 1807.
Principality of Abkhazia ended in 1864.
Principality of Wales ended in 1282.
Principality of Montenegro ended in 1910.
Principality of Mingrelia ended in 1857.
Principality of Albania ended in 1925.