In Dorestad (present day part of Wijk bij Duurstede, province of Utrecht, the Netherlands), coins were produced by the Merovingians
in the 7th century. Around 650, Dorestad came under Frisian influence, leading to the production of imitations. From circa
751 until circa 850, a Carolingian royal Mint was active, after which several years a local Mint was active, producing coins
still bearing the name of Lothair I.