Johan Valckenaer (Franeker, 21 January 1759 - Bennebroek, 1821) was a Dutch professor who specialized in Roman law. He was a passionate and combative patriot who promoted the right to bear weapons. In 1787 he went in exile in France and in 1793 he made proposals for a constitutional monarchy.[1] After his return in 1795 he became professor in Constitutional law, a member of National Assembly, a diplomat and financial counsellor.