Castle Castle Castle Isenburg, the original countship was divided upon the death of Count
Rembold II in 1137 into: • Isenburg (or
Isenburg-Isenburg), 1137–1199, eventually dividing c. 1210 into: •
Isenburg-Braunsberg, 1210–1388, when it was renamed Isenburg-Wied. Isenburg-Wied, in turn, existed from 1388 to 1454, when it passed by marriage to the Lords of
Runkel and was superseded by the Countship of
Wied in 1462. •
Nieder-Isenburg (Lower Isenburg), 1218–1502 when it was divided into: •
Isenburg-Grenzau, 1502–1664. After the death of Count
Ernest in 1664 without direct heirs, his territories were claimed back as feudal tenures by the Archbishoprics of
Cologne and
Trier, and the
Abbey-principality of
Fulda. The core territories including Isenburg were passed on by Fulda to the Counts of
Walderdorff. They had to share them according to a later agreement with the Counts of Wied, by then a cadet branch of the Isenburgs. •
Isenburg-Neumagen, 1502–1554, when it passed by marriage to the Counts of
Sayn-Homburg. •
Isenburg-Kempenich, 1137–1424, when it passed to the Lords of
Schöneck. In 1434, it passed to the Archbishop of Trier, who sold the territory to the Counts of
Virneburg. •
Isenburg-Limburg-Covern, 1137–1158, when it was divided into: • Isenburg-Covern, 1158–1306, when it passed to Isenburg-Cleberg. •
Isenburg-Grenzau, 1158–1258, when it was divided into: •
Isenburg-Limburg, 1258–1406, when it was annexed by the
Archbishopric of Trier •
Isenburg-Grenzau, 1258–1287, when it was divided into: •
Isenburg-Grenzau, 1287–1290, when it passed to Isenburg-Cleberg. •
Isenburg-Arnfels, 1286–1379, when it passed to Isenburg-Wied. •
Isenburg-Cleberg, 1287–1340, when it was divided into: •
Isenburg-Grenzau, 1340–1439, when it passed to Nassau-Beilstein. It subsequently passed to the Archbishopric of Trier in 1446, and was finally purchased by the Counts of
Nieder-Isenburg in 1460. •
Isenburg-Büdingen, 1340–1511, when it was divided into: •
Isenberg-Büdingen-Ronneburg, or Isenburg-
Ronneburg, 1511–1601, when it was annexed by Isenburg-Büdingen-Birstein •
Isenburg-Büdingen-Birstein (or Isenburg-Birstein), 1511–1628, which was divided into: •
Isenburg-Birstein, 1628–1664, when it passed to
Isenburg-Offenbach •
Isenburg-Büdingen, 1628–1685, when it was divided into: •
Isenburg-Büdingen, 1685–1806, when it was mediatized to the Principality of Isenburg •
Isenburg-Wächtersbach, 1685–1806, when it was mediatized to the Principality of Isenburg •
Isenburg-Meerholz, 1685–1806, when it was mediatized to the Principality of Isenburg •
Isenburg-Marienborn, 1685–1725 •
Isenburg-Offenbach, 1628–1711, when it was divided into: •
Isenburg-Birstein, 1711–1744, when it became the Principality of Isenburg-Birstein. The Principality existed from 1744 to 1806, when it was renamed the Principality of Isenburg, 1806–1814/5 •
Isenburg-Eisenberg, 1711–1758, when it was absorbed back into the Principality of Isenburg-Birstein •
Isenburg-Philippseich, 1711–1806, when it was mediatized to the Principality of Isenburg ==Principality of Isenburg==