The Amsinck family is a Dutch-origined patrician family whose members were prominent merchants in multiple countries including the Netherlands, Hamburg, Portugal, England, France, Hanover, Holstein, Denmark, Suriname and India.
The Hamburg branch retained a Dutch identity for centuries, often intermarrying with other Dutch-origined patrician families.
The flowering plant genus Amsinckia is named after the family in honour of the Hamburg head of state and patron of botany Wilhelm Amsinck (1752–1831).
[2] Willem Amsinck was married to Henrica de Rouse and they were the parents of Rudolf Amsinck (1577–1636), who became a senator of Hamburg, and who was married to Isabeau (Isabella) de Hertoghe (1583–1636) from Antwerp, whose family formed part[citation needed] of the seven noble houses of Brussels patrician group in what is now Belgium.
Paul Amsinck (1733–1812) was Ambassador of the Hanseatic states to the Court of St. James's (the United Kingdom; 1771-1784).