Lennep, Jacob van, 1802-68, Dutch writer. He was state's attorney (1852) and served in the legislature (1853-56). He is best known for his historical novels influenced by Walter Scott, which include The Adopted Son (1833, tr. 1844) and The Rose of Dekama (1836, tr. 1847). He also wrote verse; translated Byron, Tennyson, and others; and wrote on Vondel, whose works he edited.