(Ulric), one of the greatest civilians in the 17th century, was born at Dockum in 1636. He became professor of law at Franeker; and wrote, 1. A treatise De jure civilis. 2. Jurisprudentia Frisica. 3. Specimen philosophiae civilis. 4. Institutiones historiae civilis; and several other works which are esteemed. He died in 1694.