To whom Windeck Castle passed once the Lords of Winterau were gone is shrouded in darkness. Perhaps it ended up with the Altmünster Convent, which might then have passed it on in 1414, together with a third of the Heidesheim court, to Archbishop of Mainz John II of Nassau. In 1481, the archiepiscopal "Amtmann" of Heidesheim, Johann Langwert von Simmern, lived at the castle. His successor, Heinrich von Stockheim, had his own seat built after 1577 in the form of the "Schlossmühle" (“Castle Mill”). Whether his successor moved back into the castle is uncertain. Whatever happened, Windeck was still owned by the Court Chamber ("Hofkammer"), which then granted Samuel Becker, the cellarmaster (winemaker) at the Martinsburg (a now vanished castle) at Mainz the castle, the estate and the eighth of the Heidesheim tithes that came along with those in 1629, as a heritable holding.