Otto I of Nassau (ca.1247--1290), Count of Nassau was the younger son of Count Henry II of Nassau and Matilda of Geldern.
He was the younger son of Count Henry II of Nassau and Matilda of Geldern. Otto I of Nassau (ca.1247--1290), Count of Nassau.
Otto I of Nassau (ca.1247--1290), Count of Nassau. He was the younger son of Count Henry II of Nassau and Matilda of Geldern.
Otto I of Nassau (ca.1247--1290), Count of Nassau. He was the younger son of Count Henry II of Nassau and Matilda of Geldern.