John III, Count of Nassau-Beilstein

John III, Count of Nassau-Beilstein was a son of John II and his wife Maria of Solms-Braunfels.
In 1513, he succeeded his father as Count of Nassau-Beilstein. In 1523, he married Anna, a daughter of Louis I of Nassau-Weilburg and Margaret of Nassau-Wiesbaden.
He died on 11 December 1561. As he had no male heir, Nassau-Beilstein fell back to Nassau-Dillenburg. He may have had a son, Jonas/Hans, but more documentation is needed to confirm. It is unclear why this son, if he existed, did not inherit his father's title.