Thorn, a municipality in the Dutch province of Limburg, developed around a Benedictine convent founded in 992 and closed in
1797. As early as the beginning of the 11th century, Abbess Gerberga had coins minted in her own name. Regular coinage only
began in the 16th century during the abbesseships of Margaretha van Brederode (1531–1577) and Anna van der Marck (1604–1631).
These were mostly imitations of well-known examples, sometimes original types, and often of inferior quality, which led to
difficulties. In 1561, Emperor Ferdinand banned coinage in Thorn; Margaretha van Brederode was summoned before the Chamber
Court in Spier, but coinage resumed in 1562. Her successor, Josina van der Marck (1577–1604), was, however, not permitted
to mint coins. Her sister and successor, Anna van der Marck (1604–1631), resumed coinage in Thorn, though this was subject
to strict restrictions imposed by the Westphalian League. It is likely that no more gold was minted under her, and, apart
from a few trial pieces for double daalders, only shillings and smaller denominations were struck. The coat of arms of Margaretha
van Brederode features four red lions on a silver field. That of Anna van der Marck is quartered with Marck, Wassenaar-Leiden,
Runkel and Lumey, with a heart shield bearing Schoonhoven.