Adolph I, Count of Nassau-Wiesbaden-Idstein

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Adolph I, Count of Nassau-Wiesbaden-Idstein
Born	1307 (1307)
Died	17 January 1370(1370-01-17) (aged 62–63)
Noble family	Nassau
Spouse(s)	Margaret of Nuremberg
Father	Gerlach I of Nassau-Wiesbaden
Mother	Agnes of Hesse

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)