Arleri, Pietro an Italian architect, was born at Bologna in 1333. His family were of German origin (named Arler). In 1356 he was employed in the construction of the Cathedral of St.Vita at Prague, commenced in 1343 under the direction of Matthias of Arras. Arleri continued this work until 1386. He also constructed the Church of the Saints at Prague; that of Kolin upon the, Elbe; and the bridge of Moldau. See Hoefer, Nouv. Biog. Generale, s.v.; Spooner, Biog. Hist. of the Fine Arts, s.v.