Adolph I, Count of Nassau-Wiesbaden-Idstein (1307 – 17 January 1370) was a son of Count Gerlach I and Agnes of Hesse. In 1344, his father abdicated in favor of his sons. They ruled jointly until 1355, then divided their inheritance:
Adolph I inherited Nassau-Wiesbaden-Idstein (this line died out in the male line in 1605)
John I inherited Nassau-Weilburg (this line died out in the male line in 1912)
Rupert inherited Nassau-Sonnenberg (he died childless in 1390)
Marriage and issue
In 1322 Adolph married Margaret of Nuremberg, the daughter of Frederick IV, Burgrave of Nuremberg. They had the following children:
Gerlach II (1333–1386), inherited Nassau-Wiesbaden
Frederick (d. 1376) was minister in Mainz
Agnes (d. 1376), married Werner IV, Count of Wittgenstein
John
Margaret was abbess of Klarenthal Monastery
Elisabeth (d. 1389), married in 1361 to Diether VIII, Count of Katzenelnbogen
Adolph I of Nassau (1353–1390), Archbishop of Mainz from 1379
John II (1353–1420), Archbishop of Mainz from 1397
Anna was abbess of Klarenthal Monastery
Walram IV (1354–1393), inherited Nassau-Idstein
Catherine (d. 1403), married in 1373 to Reinhard IV, Count of Westerburg
Frederick
Walram II
Joanna