VIZEU or VISEU, a Portuguese episcopal city at the terminus of a branch of the Figueira da Foz-Guarda railway. Pop. (1930) 9,471. The city stands near the ruins of the ancient Vacca, or Cava de Viriato, a Roman military colony founded by Decius Brutus and captured by Viriathus (2nd century B.C.). The ad ministrative district of Vizeu coincides with the central and northern parts of the ancient province of Beira (q.v.). Pop. (1930), area, 1,937 sq.m.