What year did XXX dissolve?
County of Nassau
His son Count Gerlach abdicated in 1344 and the County was divided under his sons in 1355 County of Nassau-Weilburg, again divided from 1442 to 1574 County of Nassau-Saarbrücken (Elder) County of Nassau-Weilburg County of Nassau-Wiesbaden, again divided from 1480 to 1509 County of Nassau-Idstein County of Nassau-Wiesbaden fell back to Nassau-Weilburg in 1605 County of Nassau-Sonnenberg, partitioned among Nassau-Wiesbaden and Nassau-Weilburg in 1405 In 1605, all parts of Nassau-Weilburg were again unified under Count Louis II; however, after his death in 1627, his sons divided the county again County of Nassau-Idstein, fell to Nassau-Ottweiler in 1721 County of Nassau-Saarbrücken (Younger), divided again in 1640 County of Nassau-Saarbrücken, fell to Nassau-Ottweiler in 1723 County of Nassau-Ottweiler, fell to Nassau-Usingen in 1728 County of Nassau-Usingen, Principality in 1688 County of Nassau-Weilburg (Younger) After Nassau-Usingen had inherited Nassau-Ottweiler with former Nassau-Idstein and Nassau-Saarbrücken, it was reunified with Nassau-Weilburg and raised to the Duchy of Nassau in 1806.
1806