Ducat - William IV

The Lordship of Bergh was a minor Gelderlandic territory whose coinage rights were perpetually contested — the Holy Roman Emperor repeatedly challenged independent minting by lesser lords during the sixteenth century, making ducats from such lordships legally precarious the moment they left the mint. William IV ruled Bergh for four decades, long enough to produce a coherent series, but the lordship's small scale kept output modest.

Delmonte's classification remains the primary reference because so few examples have surfaced in documented auction records to prompt revision.