Arnoldus Clapmarius (real surname Klapmeier, also known as Arnold Clapmar) (1574–1604) was a German academic, jurist and humanist, known for his writings on statecraft.
He was appointed successor to Christoph Coler at Altdorf by Moritz of Hesse-Kassel, as professor of history and politics; he died four years later.
[10] His work also attracted much attention in the Netherlands in the middle of the 17th century among those concerned to limit state power; the Bedekte konsten (Hidden Arts) (1657) of Gerard van Wassenaer, and almost identical Nauwkeurige consideratie van staet (Close Consideration of the State) (1662) attributed to Pieter de la Court, were heavily influenced by Clapmarius.
[11][12] Another work was Nobilis adolescentis triennium, first published in Christian Becmann's Manuductio ad Latinam linguam (1611) and often reprinted.
[2] In it Clapmarius made the humanist case for mastery of the Latin language, as preparation for a career for example in diplomacy or the law.