Rupert III, Count of Nassau

Rupert was probably a son of count Arnold II of Laurenburg and a woman of unknown name.

[5] With his cousin Walram, Rupert joined the Third Crusade (1189-1190), and in 1190 commanded the fourth army troop.

The delegation did arrive in Constantinople, but was treated badly by the Byzantine Emperor and imprisoned in poor conditions.

[7] Nothing is known with certainty about his further participation in the crusade; it seems that he stayed until the end of the siege of Akko and then died on the way back at sea.

Rupert possibly married firstly to a daughter of William, Count of Gießen.