(originally Roeloff Huysmann), a distinguished Dutch philosopher an .theologian, was born at Bafflo, near Groningen, in 1443. He was educated at Louvain, where he graduated as A.M. He afterwards studied at Paris, and at Ferrara, in Italy. He returned to Holland in 1479, and soon after became syndic of Groningen. In 1482 he became professor at Heidelberg, where he died in 1485. His principal work is the De Inventione Dialectica, in which he attacks the scholastic philosophy of his day. He also opposed the corruptions of Rome. See Encyclop. Brit. (9th ed.), s.v.; Mosheim, Hist. of the Church, bk. iii, cent. xv, pt. ii, ch. ii; Ueberweg, Hist. of Philos. ii, 10.